Уязвимости cimg

GreycLab CImg through 4.0.6 Heap Out-of-Bounds Read via Integer Overflow in _load_bmp()

CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.

CImg Library: Uncontrolled Memory Allocation and Memory Leak in `_load_analyze()` via Crafted NIfTI/Analyze Header

CImg Library is a C++ library for image processing. Prior to version 4.0.0 in `_load_analyze()`, the header_size field is read as an `unsigned int` from the first 4 bytes of an Analyze/NIfTI file and passed directly to `new unsigned char[header_size]` without being bounded against the actual file size. A value up to ~4 GB is accepted. If the subsequent `fread` returns `short` as it will for any malformed file), the function throws a `CImgIOException` and the allocated buffer is never freed. A 6-byte crafted file is sufficient to trigger an allocation of ~1.3 GB per call, with the full allocation leaked on every error path. The issue is reach

CImg Library: Uncontrolled memory allocation via nb_colors field in _load_bmp

CImg Library is a C++ library for image processing. Prior to commit c3aacf5, the nb_colors field read from the BMP file header is used directly to compute an allocation size without validating it against the remaining file size. A crafted BMP file with a large nb_colors value triggers an out-of-memory condition, crashing any application that uses CImg to load untrusted BMP files. This issue has been patched via commit c3aacf5.

CImg Library: Integer overflow in PNM size check bypasses memory guard (_load_pnm)

CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow vulnerability in the W*H*D size computation inside _load_pnm() that can bypass the memory allocation guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around, allocating an undersized buffer and potentially triggering a heap buffer overflow. Any application using CImg to load untrusted image files is affected. This issue has been patched via commit 4ca26bc.

CVE-2024-26540

A heap-based buffer overflow in Clmg before 3.3.3 can occur via a crafted file to cimg_library::CImg<unsigned char>::_load_analyze.

CVE-2022-1325

A flaw was found in Clmg, where with the help of a maliciously crafted pandore or bmp file with modified dx and dy header field values it is possible to trick the application into allocating huge buffer sizes like 64 Gigabyte upon reading the file from disk or from a virtual buffer.

• Обновитесь до 3.1.6+dfsg-1

CVE-2020-25693

A flaw was found in CImg in versions prior to 2.9.3. Integer overflows leading to heap buffer overflows in load_pnm() can be triggered by a specially crafted input file processed by CImg, which can lead to an impact to application availability or data integrity.

• Обновитесь до 2.9.4+dfsg-2

CVE-2019-13568

CImg through 2.6.7 has a heap-based buffer overflow in _load_bmp in CImg.h because of erroneous memory allocation for a malformed BMP image.

• Обновитесь до 2.8.4+dfsg-1

CVE-2019-1010174

CImg The CImg Library v.2.3.3 and earlier is affected by: command injection. The impact is: RCE. The component is: load_network() function. The attack vector is: Loading an image from a user-controllable url can lead to command injection, because no string sanitization is done on the url. The fixed version is: v.2.3.4.

• Обновитесь до 2.3.6+dfsg-1

CVE-2018-7641

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image, a different vulnerability than CVE-2018-7588. This is in a "32 bits colors" case, aka case 32.

• Обновитесь до 2.3.6+dfsg-1

CVE-2018-7640

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image, a different vulnerability than CVE-2018-7588. This is in a Monochrome case, aka case 1.

• Обновитесь до 2.3.6+dfsg-1

CVE-2018-7639

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image, a different vulnerability than CVE-2018-7588. This is in a "16 bits colors" case, aka case 16.

• Обновитесь до 2.3.6+dfsg-1

CVE-2018-7638

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image, a different vulnerability than CVE-2018-7588. This is in a "256 colors" case, aka case 8.

• Обновитесь до 2.3.6+dfsg-1

CVE-2018-7637

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image, a different vulnerability than CVE-2018-7588. This is in a "16 colors" case, aka case 4.

• Обновитесь до 2.3.6+dfsg-1

CVE-2018-7589

An issue was discovered in CImg v.220. A double free in load_bmp in CImg.h occurs when loading a crafted bmp image.

• Обновитесь до 2.3.6+dfsg-1

CVE-2018-7588

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image.

• Обновитесь до 2.3.6+dfsg-1

CVE-2018-7587

An issue was discovered in CImg v.220. DoS occurs when loading a crafted bmp image that triggers an allocation failure in load_bmp in CImg.h.