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Red Hat: CVE-2023-6918: libssh: Missing checks for return values for digests (Multiple Advisories)

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Red Hat: CVE-2023-6918: libssh: Missing checks for return values for digests (Multiple Advisories)

Severity
3
CVSS
(AV:N/AC:H/Au:N/C:N/I:N/A:P)
Published
12/19/2023
Created
05/01/2024
Added
05/01/2024
Modified
09/03/2024

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.

Solution(s)

  • redhat-upgrade-libssh
  • redhat-upgrade-libssh-config
  • redhat-upgrade-libssh-debuginfo
  • redhat-upgrade-libssh-debugsource
  • redhat-upgrade-libssh-devel

References

  • CVE-2023-6918
  • RHSA-2024:2504
  • RHSA-2024:3233

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