CVE-2023-6918
low-risk
Published 2023-12-19
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.
Do I need to act?
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0.36% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.7/10
Low
NETWORK
/ HIGH complexity
Affected Products (5)
Affected Vendors
References (15)
Mailing List
https://access.redhat.com/security/cve/CVE-2023-6918
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2254997
Vendor Advisory
https://www.libssh.org/security/advisories/CVE-2023-6918.txt
Mailing List
https://access.redhat.com/security/cve/CVE-2023-6918
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2254997
Vendor Advisory
https://www.libssh.org/security/advisories/CVE-2023-6918.txt
26
/ 100
low-risk
Severity
13/34 · Low
Exploitability
1/34 · Minimal
Exposure
12/34 · Low