CVE-2023-6918
Low
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.
SeverityLow
CVSS3.7
Exploit probability—
Product
Libssh
PublishedDec 19, 2023
First seenDec 19, 2023
Weakness typeCWE-252CWE-252
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libssh libssh | 0.9.0 ≤ v < 0.9.8, 0.10.0 ≤ v < 0.10.6 | 0.9.8, 0.10.6 |
| fedoraproject fedora | 38, 39 | — |
| redhat enterprise_linux | 8.0, 9.0 | — |
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