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cvelistRedhatCVELIST:CVE-2023-6918
HistoryDec 18, 2023 - 11:27 p.m.

CVE-2023-6918 Libssh: missing checks for return values for digests

2023-12-1823:27:48
CWE-252
redhat
raw.githubusercontent.com
1
cve-2023-6918
libssh
message digest
low-memory
null dereferences
crashes
uninitialized memory
kdf
decryption failures
integrity failures

6.1 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

30.4%

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.