# CVE-2023-2283: libssh-devel: libssh is a library which implements the SSH protocol CVE-2023-2283 is fixed in 7 products on 1 platform, first by libssh-4 0.9.3-2ubuntu2.3, released May 8, 2023. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2023-2283 - Priority: Routine - CVSS: 6.5 (Moderate) - EPSS: 0.0106 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 8, 2023 ## Description libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. Security Fix(es): * libssh: NULL pointer dereference during rekeying with algorithm guessing (CVE-2023-1667) * libssh: authorization bypass in pki_verify_data_signature (CVE-2023-2283) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | libssh Debian 12.15 (bookworm) | 0.10.5-1 | [DEBIAN-CVE-2023-2283](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2283.md) | May 26, 2023 | | Linux | libssh Debian 13.5 (trixie) | 0.10.5-1 | [DEBIAN-CVE-2023-2283](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2283.md) | May 26, 2023 | | Linux | libssh Debian 14 | 0.10.5-1 | [DEBIAN-CVE-2023-2283](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2283.md) | May 26, 2023 | | Linux | libssh RHEL 8 | 0:0.9.6-10.el8_8 | [RHSA-2023:3839](https://patchblox.com/security/data/fix/linux/rhsa-2023-3839.md) | Jun 27, 2023 | | Linux | libssh RHEL 9 | 0:0.10.4-11.el9 | [RHSA-2023:6643](https://patchblox.com/security/data/fix/linux/rhsa-2023-6643.md) | Nov 7, 2023 | | Linux | libssh almalinux 8 | 0.9.6-10.el8_8 | [ALSA-2023:3839](https://patchblox.com/security/data/fix/linux/alsa-2023-3839.md) | Jun 27, 2023 | | Linux | libssh almalinux 9 | 0.10.4-11.el9 | [ALSA-2023:6643](https://patchblox.com/security/data/fix/linux/alsa-2023-6643.md) | Nov 7, 2023 | | Linux | libssh amzn 2023 | 0.10.5-1.amzn2023.0.1 | [ALAS2023-2023-186](https://patchblox.com/security/data/fix/linux/alas2023-2023-186.md) | May 25, 2023 | | Linux | libssh ol 8 | 0:0.9.6-10.el8_8 | [ELSA-2023-3839](https://patchblox.com/security/data/fix/linux/elsa-2023-3839.md) | Jun 29, 2023 | | Linux | libssh ol 9 | 0:0.10.4-11.el9 | [ELSA-2023-6643](https://patchblox.com/security/data/fix/linux/elsa-2023-6643.md) | Nov 11, 2023 | | Linux | libssh rocky 8 | 0:0.9.6-10.el8_8 | [RLSA-2023:3839](https://patchblox.com/security/data/fix/linux/rlsa-2023-3839.md) | Jul 8, 2023 | | Linux | libssh-4 Ubuntu 20.04 LTS (focal) | 0.9.3-2ubuntu2.3 | [libssh-4 0.9.3-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssh-4-0.9.3-2ubuntu2.3.md) | May 8, 2023 | | Linux | libssh-4 Ubuntu 22.04.1 LTS (jammy) | 0.9.6-2ubuntu0.22.04.1 | [libssh-4 0.9.6-2ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libssh-4-0.9.6-2ubuntu0.22.04.1.md) | May 8, 2023 | | Linux | libssh-config RHEL 8 | 0:0.9.6-10.el8_8 | [RHSA-2023:3839](https://patchblox.com/security/data/fix/linux/rhsa-2023-3839.md) | Jun 27, 2023 | | Linux | libssh-config RHEL 9 | 0:0.10.4-11.el9 | [RHSA-2023:6643](https://patchblox.com/security/data/fix/linux/rhsa-2023-6643.md) | Nov 7, 2023 | | Linux | libssh-config almalinux 8 | 0.9.6-10.el8_8 | [ALSA-2023:3839](https://patchblox.com/security/data/fix/linux/alsa-2023-3839.md) | Jun 27, 2023 | | Linux | libssh-config almalinux 9 | 0.10.4-11.el9 | [ALSA-2023:6643](https://patchblox.com/security/data/fix/linux/alsa-2023-6643.md) | Nov 7, 2023 | | Linux | libssh-config amzn 2023 | 0.10.5-1.amzn2023.0.1 | [ALAS2023-2023-186](https://patchblox.com/security/data/fix/linux/alas2023-2023-186.md) | May 25, 2023 | | Linux | libssh-config ol 8 | 0:0.9.6-10.el8_8 | [ELSA-2023-3839](https://patchblox.com/security/data/fix/linux/elsa-2023-3839.md) | Jun 29, 2023 | | Linux | libssh-config ol 9 | 0:0.10.4-11.el9 | [ELSA-2023-6643](https://patchblox.com/security/data/fix/linux/elsa-2023-6643.md) | Nov 11, 2023 | | Linux | libssh-debuginfo amzn 2023 | 0.10.5-1.amzn2023.0.1 | [ALAS2023-2023-186](https://patchblox.com/security/data/fix/linux/alas2023-2023-186.md) | May 25, 2023 | | Linux | libssh-debugsource amzn 2023 | 0.10.5-1.amzn2023.0.1 | [ALAS2023-2023-186](https://patchblox.com/security/data/fix/linux/alas2023-2023-186.md) | May 25, 2023 | | Linux | libssh-devel RHEL 8 | 0:0.9.6-10.el8_8 | [RHSA-2023:3839](https://patchblox.com/security/data/fix/linux/rhsa-2023-3839.md) | Jun 27, 2023 | | Linux | libssh-devel RHEL 9 | 0:0.10.4-11.el9 | [RHSA-2023:6643](https://patchblox.com/security/data/fix/linux/rhsa-2023-6643.md) | Nov 7, 2023 | | Linux | libssh-devel almalinux 8 | 0.9.6-10.el8_8 | [ALSA-2023:3839](https://patchblox.com/security/data/fix/linux/alsa-2023-3839.md) | Jun 27, 2023 | | Linux | libssh-devel almalinux 9 | 0.10.4-11.el9 | [ALSA-2023:6643](https://patchblox.com/security/data/fix/linux/alsa-2023-6643.md) | Nov 7, 2023 | | Linux | libssh-devel amzn 2023 | 0.10.5-1.amzn2023.0.1 | [ALAS2023-2023-186](https://patchblox.com/security/data/fix/linux/alas2023-2023-186.md) | May 25, 2023 | | Linux | libssh-devel ol 8 | 0:0.9.6-10.el8_8 | [ELSA-2023-3839](https://patchblox.com/security/data/fix/linux/elsa-2023-3839.md) | Jun 29, 2023 | | Linux | libssh-devel ol 9 | 0:0.10.4-11.el9 | [ELSA-2023-6643](https://patchblox.com/security/data/fix/linux/elsa-2023-6643.md) | Nov 11, 2023 | | Linux | libssh-gcrypt-4 Ubuntu 20.04 LTS (focal) | 0.9.3-2ubuntu2.3 | [libssh-gcrypt-4 0.9.3-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssh-gcrypt-4-0.9.3-2ubuntu2.3.md) | May 8, 2023 | | Linux | libssh-gcrypt-4 Ubuntu 22.04.1 LTS (jammy) | 0.9.6-2ubuntu0.22.04.1 | [libssh-gcrypt-4 0.9.6-2ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libssh-gcrypt-4-0.9.6-2ubuntu0.22.04.1.md) | May 8, 2023 | --- Data as of 2026-11-08T00:53:09Z UTC. 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