CVE-2020-1967
CVE-2020-1967 · Segmentation fault in SSL_check_chain
Здесь приведены факты из открытых источников об уязвимостях. Перед обновлением ознакомьтесь с исходным сообщением.
На странице показана часть фактов из источников. Полное описание и список затронутых версий приведены в связанных бюллетенях.
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).
CVSS 7.5 · Высокий · EPSS 53,3% · Есть исправление
- Опубликовано
- Обновлено
Затронутые продукты и версии
openssl
- Версии
- Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f): Затронуто
Нет опубликованного исправления
openssl Debian:12
- Затронутые диапазоны версий
- ECOSYSTEM: < 1.1.1g-1
Обновитесь до 1.1.1g-1
openssl Debian:13
- Затронутые диапазоны версий
- ECOSYSTEM: < 1.1.1g-1
Обновитесь до 1.1.1g-1
openssl Debian:14
- Затронутые диапазоны версий
- ECOSYSTEM: < 1.1.1g-1
Обновитесь до 1.1.1g-1
openssl Ubuntu:20.04:LTS
- Версии
- 1.1.1c-1ubuntu4
- 1.1.1d-2ubuntu3
- 1.1.1d-2ubuntu6
- 1.1.1f-1ubuntu1
- Затронутые диапазоны версий
- ECOSYSTEM: < 1.1.1f-1ubuntu2
Обновитесь до 1.1.1f-1ubuntu2
Первоисточники
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:11.openssl.asc
- https://www.debian.org/security/2020/dsa-4661
- http://www.openwall.com/lists/oss-security/2020/04/22/2
- https://lists.apache.org/thread.html/r9a41e304992ce6aec6585a87842b4f2e692604f5c892c37e3b0587ee%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r66ea9c436da150683432db5fbc8beb8ae01886c6459ac30c2cea7345%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r94d6ac3f010a38fccf4f432b12180a13fa1cf303559bd805648c9064%40%3Cdev.tomcat.apache.org%3E
- https://security.gentoo.org/glsa/202004-10
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/
- http://seclists.org/fulldisclosure/2020/May/5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.tenable.com/security/tns-2020-03
- https://www.openssl.org/news/secadv/20200421.txt
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=eb563247aef3e83dda7679c43f9649270462e5b1
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440
- https://security.netapp.com/advisory/ntap-20200424-0003/
- https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL
- https://github.com/irsl/CVE-2020-1967
- http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html
- https://www.synology.com/security/advisory/Synology_SA_20_05
- https://nvd.nist.gov/vuln/detail/CVE-2020-1967