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Unchecked Return Value Affecting libssh2 package, versions *

0.0
low

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.06% (25th percentile)
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NVD
5.3 medium
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SUSE
5.3 medium
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Red Hat
3.7 low

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  • Snyk ID SNYK-CENTOS7-LIBSSH2-6131682
  • published 19 Dec 2023
  • disclosed 18 Dec 2023
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Introduced: 18 Dec 2023

CVE-2023-6918 Open this link in a new tab
CWE-252 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 libssh2.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh2 package and not the libssh2 package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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.