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ALSA-2023:6643 Not scored

Moderate: libssh security update

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. Additional Changes: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Exploit probability Not scored
Published November 7, 2023
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

AlmaLinux:9 libssh-devel
AlmaLinux:9 libssh
AlmaLinux:9 libssh-config

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities ALSA-2023:6643

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. Additional Changes: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

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05 / REFERENCES

Further evidence