========================================================================== Ubuntu Security Notice USN-6592-1 January 22, 2024
libssh vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.10 - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: Several security issues were fixed in libssh. Software Description: - libssh: A tiny C SSH library Details: It was discovered that libssh incorrectly handled the ProxyCommand and the ProxyJump features. A remote attacker could possibly use this issue to inject malicious code into the command of the features mentioned through the hostname parameter. (CVE-2023-6004) It was discovered that libssh incorrectly handled return codes when performing message digest operations. A remote attacker could possibly use this issue to cause libssh to crash, obtain sensitive information, or execute arbitrary code. (CVE-2023-6918) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10: libssh-4 0.10.5-3ubuntu1.2 Ubuntu 23.04: libssh-4 0.10.4-2ubuntu0.3 Ubuntu 22.04 LTS: libssh-4 0.9.6-2ubuntu0.22.04.3 Ubuntu 20.04 LTS: libssh-4 0.9.3-2ubuntu2.5 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6592-1 CVE-2023-6004, CVE-2023-6918 Package Information: https://launchpad.net/ubuntu/+source/libssh/0.10.5-3ubuntu1.2 https://launchpad.net/ubuntu/+source/libssh/0.10.4-2ubuntu0.3 https://launchpad.net/ubuntu/+source/libssh/0.9.6-2ubuntu0.22.04.3 https://launchpad.net/ubuntu/+source/libssh/0.9.3-2ubuntu2.5
OpenPGP_signature.asc
Description: OpenPGP digital signature
