An update for libssh is now available for openEuler-22.03-LTS Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2024-1040 Final 1.0 1.0 2024-01-12 Initial 2024-01-12 2024-01-12 openEuler SA Tool V1.0 2024-01-12 libssh security update An update for libssh is now available for openEuler-22.03-LTS. The ssh library was designed to be used by programmers needing a working SSH implementation by the mean of a library. The complete control of the client is made by the programmer. With libssh, you can remotely execute programs, transfer files, use a secure and transparent tunnel for your remote programs. With its Secure FTP implementation, you can play with remote files easily, without third-party programs others than libcrypto (from openssl). Security Fix(es): A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter.(CVE-2023-6004) A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection.(CVE-2023-6918) An update for libssh is now available for openEuler-22.03-LTS. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium libssh https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1040 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-6004 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-6918 https://nvd.nist.gov/vuln/detail/CVE-2023-6004 https://nvd.nist.gov/vuln/detail/CVE-2023-6918 openEuler-22.03-LTS libssh-debugsource-0.9.6-8.oe2203.aarch64.rpm libssh-debuginfo-0.9.6-8.oe2203.aarch64.rpm libssh-0.9.6-8.oe2203.aarch64.rpm libssh-devel-0.9.6-8.oe2203.aarch64.rpm libssh-help-0.9.6-8.oe2203.noarch.rpm libssh-0.9.6-8.oe2203.src.rpm libssh-debuginfo-0.9.6-8.oe2203.x86_64.rpm libssh-0.9.6-8.oe2203.x86_64.rpm libssh-debugsource-0.9.6-8.oe2203.x86_64.rpm libssh-devel-0.9.6-8.oe2203.x86_64.rpm A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter. 2024-01-12 CVE-2023-6004 openEuler-22.03-LTS Medium 4.8 AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L libssh security update 2024-01-12 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1040 A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection. 2024-01-12 CVE-2023-6918 openEuler-22.03-LTS Medium 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L libssh security update 2024-01-12 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1040