{"kind": "product", "path": "vulns/ubuntu-18.04-lts/qemu", "name": "qemu", "product": "qemu", "ecosystem": "Ubuntu:18.04:LTS", "items": [{"id": "CVE-2022-0216", "noindex": false, "published": "2022-08-26T00:00:00.000Z", "modified": "2024-08-02T23:18:42.831Z", "cvss": 4.4, "cvss_vector": "", "severity": "medium", "epss": 0.00432, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-0216", "title": "CVE-2022-0216", "description": "A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service.", "references": ["https://starlabs.sg/advisories/22/22-0216/", "https://bugzilla.redhat.com/show_bug.cgi?id=2036953", "https://gitlab.com/qemu-project/qemu/-/issues/972"], "fixes": ["1:2.11+dfsg-1ubuntu7.41"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3750", "noindex": false, "published": "2022-05-02T18:48:12.000Z", "modified": "2024-08-03T17:09:08.277Z", "cvss": 8.2, "cvss_vector": "", "severity": "high", "epss": 0.00513, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3750", "title": "CVE-2021-3750", "description": "A DMA reentrancy issue was found in the USB EHCI controller emulation of QEMU. EHCI does not verify if the Buffer Pointer overlaps with its MMIO region when it transfers the USB packets. Crafted content may be written to the controller's registers and trigger undesirable actions (such as reset) while the device is still transferring packets. This can ultimately lead to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code within the context of the QEMU process on the host. This flaw affects QEMU versions before 7.0.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1999073", "https://gitlab.com/qemu-project/qemu/-/issues/541", "https://gitlab.com/qemu-project/qemu/-/issues/556"], "fixes": ["1:2.11+dfsg-1ubuntu7.41"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-4206", "noindex": false, "published": "2022-04-29T16:19:09.000Z", "modified": "2025-03-21T18:03:39.948Z", "cvss": 8.2, "cvss_vector": "", "severity": "high", "epss": 0.00834, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-4206", "title": "CVE-2021-4206", "description": "A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=2036998", "https://starlabs.sg/advisories/21-4206/", "https://www.debian.org/security/2022/dsa-5133"], "fixes": ["1:2.11+dfsg-1ubuntu7.40"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-4207", "noindex": false, "published": "2022-04-29T16:07:33.000Z", "modified": "2025-03-21T18:03:41.449Z", "cvss": 8.2, "cvss_vector": "", "severity": "high", "epss": 0.00402, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-4207", "title": "CVE-2021-4207", "description": "A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->header.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=2036966", "https://starlabs.sg/advisories/21-4207/", "https://www.debian.org/security/2022/dsa-5133"], "fixes": ["1:2.11+dfsg-1ubuntu7.40"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3748", "noindex": false, "published": "2022-03-23T19:46:40.000Z", "modified": "2024-08-03T17:09:08.293Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.00522, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3748", "title": "CVE-2021-3748", "description": "A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1998514", "https://ubuntu.com/security/CVE-2021-3748", "https://github.com/qemu/qemu/commit/bedd7e93d01961fcb16a97ae45d93acf357e11f6"], "fixes": ["1:2.11+dfsg-1ubuntu7.39"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-20257", "noindex": false, "published": "2022-03-16T14:12:26.000Z", "modified": "2024-08-03T17:37:23.120Z", "cvss": 6.5, "cvss_vector": "", "severity": "medium", "epss": 0.0037, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-20257", "title": "CVE-2021-20257", "description": "An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.", "references": ["https://www.openwall.com/lists/oss-security/2021/02/25/2", "https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html", "https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2022-26354", "noindex": false, "published": "2022-03-16T14:02:34.000Z", "modified": "2024-08-03T05:03:32.576Z", "cvss": 3.2, "cvss_vector": "", "severity": "low", "epss": 0.00391, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-26354", "title": "CVE-2022-26354", "description": "A flaw was found in the vhost-vsock device of QEMU. In case of error, an invalid element was not detached from the virtqueue before freeing its memory, leading to memory leakage and other unexpected results. Affected QEMU versions <= 6.2.0.", "references": ["https://gitlab.com/qemu-project/qemu/-/commit/8d1b247f3748ac4078524130c6d7ae42b6140aaf", "https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html", "https://security.netapp.com/advisory/ntap-20220425-0003/"], "fixes": ["1:2.11+dfsg-1ubuntu7.40"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2022-26353", "noindex": false, "published": "2022-03-16T14:02:33.000Z", "modified": "2024-08-03T05:03:32.949Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.02743, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-26353", "title": "CVE-2022-26353", "description": "A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0.", "references": ["https://lists.nongnu.org/archive/html/qemu-devel/2022-03/msg02438.html", "https://gitlab.com/qemu-project/qemu/-/commit/abe300d9d894f7138e1af7c8e9c88c04bfe98b37", "https://security.netapp.com/advisory/ntap-20220425-0003/"], "fixes": ["1:2.11+dfsg-1ubuntu7.40"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3930", "noindex": false, "published": "2022-02-18T17:50:48.000Z", "modified": "2024-08-03T17:09:09.783Z", "cvss": 6.5, "cvss_vector": "", "severity": "medium", "epss": 0.00338, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3930", "title": "CVE-2021-3930", "description": "An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=2020588", "https://security.netapp.com/advisory/ntap-20220225-0007/", "https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html"], "fixes": ["1:2.11+dfsg-1ubuntu7.39"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3682", "noindex": false, "published": "2021-08-05T19:51:26.000Z", "modified": "2024-08-03T17:01:07.707Z", "cvss": 8.5, "cvss_vector": "", "severity": "high", "epss": 0.0288, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3682", "title": "CVE-2021-3682", "description": "A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1989651", "https://security.netapp.com/advisory/ntap-20210902-0006/", "https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html"], "fixes": ["1:2.11+dfsg-1ubuntu7.39"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3595", "noindex": false, "published": "2021-06-15T00:00:00.000Z", "modified": "2024-08-03T17:01:07.535Z", "cvss": 3.8, "cvss_vector": "", "severity": "low", "epss": 0.00326, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3595", "title": "CVE-2021-3595", "description": "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1970489", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3594", "noindex": false, "published": "2021-06-15T00:00:00.000Z", "modified": "2024-08-03T17:01:07.408Z", "cvss": 3.8, "cvss_vector": "", "severity": "low", "epss": 0.00326, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3594", "title": "CVE-2021-3594", "description": "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1970491", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3593", "noindex": false, "published": "2021-06-15T00:00:00.000Z", "modified": "2024-08-03T17:01:07.949Z", "cvss": 3.8, "cvss_vector": "", "severity": "low", "epss": 0.00326, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3593", "title": "CVE-2021-3593", "description": "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1970487", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3592", "noindex": false, "published": "2021-06-15T00:00:00.000Z", "modified": "2024-08-03T17:01:06.527Z", "cvss": 3.8, "cvss_vector": "", "severity": "low", "epss": 0.00326, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3592", "title": "CVE-2021-3592", "description": "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1970484", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2020-35505", "noindex": false, "published": "2021-05-28T10:20:48.000Z", "modified": "2024-08-04T17:02:08.049Z", "cvss": 4.4, "cvss_vector": "", "severity": "medium", "epss": 0.00317, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-35505", "title": "CVE-2020-35505", "description": "A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.", "references": ["http://www.openwall.com/lists/oss-security/2021/04/16/3", "https://www.openwall.com/lists/oss-security/2021/04/16/3", "https://bugzilla.redhat.com/show_bug.cgi?id=1909769"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2020-35504", "noindex": false, "published": "2021-05-28T10:20:40.000Z", "modified": "2024-08-04T17:02:08.026Z", "cvss": 6, "cvss_vector": "", "severity": "medium", "epss": 0.00338, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-35504", "title": "CVE-2020-35504", "description": "A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.", "references": ["http://www.openwall.com/lists/oss-security/2021/04/16/3", "https://bugzilla.redhat.com/show_bug.cgi?id=1909766", "https://www.openwall.com/lists/oss-security/2021/04/16/3"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-20196", "noindex": false, "published": "2021-05-26T21:16:58.000Z", "modified": "2024-08-03T17:30:07.781Z", "cvss": 6.5, "cvss_vector": "", "severity": "medium", "epss": 0.00479, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-20196", "title": "CVE-2021-20196", "description": "A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.", "references": ["https://bugs.launchpad.net/qemu/+bug/1912780", "https://www.openwall.com/lists/oss-security/2021/01/28/1", "https://security.netapp.com/advisory/ntap-20210708-0004/"], "fixes": ["1:2.11+dfsg-1ubuntu7.39"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-3527", "noindex": false, "published": "2021-05-26T21:13:56.000Z", "modified": "2024-08-03T17:01:07.589Z", "cvss": 5.5, "cvss_vector": "", "severity": "medium", "epss": 0.00374, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3527", "title": "CVE-2021-3527", "description": "A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1955695", "https://www.openwall.com/lists/oss-security/2021/05/05/5", "https://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-20221", "noindex": false, "published": "2021-05-13T15:34:48.000Z", "modified": "2024-08-03T17:30:07.645Z", "cvss": 6, "cvss_vector": "", "severity": "medium", "epss": 0.00326, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-20221", "title": "CVE-2021-20221", "description": "An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said issue while updating controller state fields and their subsequent processing. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.", "references": ["http://www.openwall.com/lists/oss-security/2021/02/05/1", "https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html", "https://bugzilla.redhat.com/show_bug.cgi?id=1924601"], "fixes": ["1:2.11+dfsg-1ubuntu7.37"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}, {"id": "CVE-2021-20181", "noindex": false, "published": "2021-05-13T15:24:15.000Z", "modified": "2024-08-03T17:30:07.767Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.00333, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-20181", "title": "CVE-2021-20181", "description": "A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.", "references": ["https://www.zerodayinitiative.com/advisories/ZDI-21-159/", "https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html", "https://bugzilla.redhat.com/show_bug.cgi?id=1927007"], "fixes": ["1:2.11+dfsg-1ubuntu7.35"], "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}]}], "total": 86, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 5, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "qemu", "path": "vulns/ubuntu-18.04-lts/qemu", "ecosystem": "Ubuntu:18.04:LTS"}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": [], "stats": {"recent": 0, "kev": 0}, "lastmod": "2025-03-21T18:03:41.449Z", "early_advisories": [], "license": "Подборку PatchFirst и наши дополнения (приоритеты, ранние предупреждения, тексты, сводки и агрегаты) можно свободно использовать для собственных целей, включая внутренние задачи бизнеса. Перепродажа, коммерческое распространение и массовое зеркалирование этой подборки или дополнений допускаются только по письменному соглашению с оператором. При любом использовании или публикации подборки или наших дополнений указывайте PatchFirst (https://ru.patchfirst.dev/vulns/) с этой ссылкой на страницу ленты своего региона. Исходные записи открытых источников остаются под их лицензиями и условиями. Эти условия не ограничивают ваши права на исходные данные, которые можно получить у источников напрямую.", "terms_url": "https://ru.patchfirst.dev/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://ru.patchfirst.dev/vulns/"}, "source_changes": "PatchFirst отбирает, нормализует и объединяет записи; могут добавляться сводки и переводы. Новости указываются ссылкой на первоисточник в самой записи.", "sources": [{"id": "cve", "name": "CVE List / CVE.org", "url": "https://www.cve.org/", "license": "CVE Terms of Use", "terms_url": "https://www.cve.org/Legal/TermsOfUse", "notice": "Copyright © 1999–2021, The MITRE Corporation. LICENSE Submissions : For all materials you submit to the Common Vulnerabilities and Exposures (CVE™), you hereby grant to The MITRE Corporation (MITRE) and all CVE Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute such materials and derivative works. Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. DISCLAIMERS ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."}, {"id": "osv", "name": "OSV", "url": "https://osv.dev/", "terms_url": "https://google.github.io/osv.dev/data/", "terms": "Лицензии исходных баз различаются; см. каталог источников."}, {"id": "kev", "name": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "license": "CC0-1.0", "terms_url": "https://github.com/cisagov/kev-data/blob/develop/LICENSE"}, {"id": "epss", "name": "FIRST EPSS", "url": "https://www.first.org/epss/", "terms_url": "https://www.first.org/epss/faq", "terms": "Оценки доступны свободно; запрашивается указание источника (FIRST EPSS, оценки подготовлены Empirical Security)."}, {"id": "github-advisory", "name": "GitHub Advisory Database", "url": "https://github.com/advisories", "license": "CC-BY-4.0", "terms_url": "https://github.com/github/advisory-database/blob/main/LICENSE.md"}, {"id": "exploitdb", "name": "Exploit-DB", "url": "https://www.exploit-db.com/", "license": "GPL-2.0", "terms_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/LICENSE.md"}, {"id": "metasploit", "name": "Metasploit", "url": "https://github.com/rapid7/metasploit-framework", "license": "BSD-3-Clause", "terms_url": "https://github.com/rapid7/metasploit-framework/blob/master/LICENSE", "notice": "Copyright (c) 2006-2026, Rapid7, Inc.\nLicense: BSD-3-clause\n Redistribution and use in source and binary forms, with or without modification,\n are permitted provided that the following conditions are met:\n .\n * Redistributions of source code must retain the above copyright notice,\n this list of conditions and the following disclaimer.\n .\n * Redistributions in binary form must reproduce the above copyright notice,\n this list of conditions and the following disclaimer in the documentation\n and/or other materials provided with the distribution.\n .\n * Neither the name of Rapid7, Inc. nor the names of its contributors\n may be used to endorse or promote products derived from this software\n without specific prior written permission.\n .\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR\n ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\n ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\n SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."}, {"id": "nuclei", "name": "Nuclei Templates", "url": "https://github.com/projectdiscovery/nuclei-templates", "license": "MIT", "terms_url": "https://github.com/projectdiscovery/nuclei-templates/blob/main/LICENSE.md", "notice": "MIT License\n\nCopyright (c) 2025 ProjectDiscovery, Inc.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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