A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2023-05-26T00:00:00
Updated: 2024-08-02T06:19:14.319Z
Reserved: 2023-04-25T00:00:00
Link: CVE-2023-2283
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-05-26T18:15:13.770
Modified: 2024-02-01T17:15:08.197
Link: CVE-2023-2283
Redhat