CVE-2023-6918 Information

Description

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.

Reference

https://access.redhat.com/security/cve/CVE-2023-6918 https://bugzilla.redhat.com/show_bug.cgi?id=2254997 https://www.libssh.org/2023/12/18/libssh-0-10-6-and-libssh-0-9-8-security-releases/