CVE-2023-2283

CVSS V2 None CVSS V3 None

Description

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.

Overview

CVE ID
CVE-2023-2283

Assigner
redhat

Vulnerability Status
PUBLISHED

Published Version
2023-05-26T00:00:00

Last Modified Date
2024-02-01T17:06:59.699395

Weakness Enumerations

CWE	URL
CWE-287	http://cwe.mitre.org/data/definitions/287.html

References

Reference URL	Reference Tags
https://access.redhat.com/security/cve/CVE-2023-2283
https://www.libssh.org/security/advisories/CVE-2023-2283.txt
https://bugzilla.redhat.com/show_bug.cgi?id=2189736
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/	vendor-advisory
http://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html
https://security.gentoo.org/glsa/202312-05	vendor-advisory
https://security.netapp.com/advisory/ntap-20240201-0005/

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2023-2283
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2283

History

Created	Old Value	New Value	Data Type	Notes
2024-06-24 22:17:14				Added to TrackCVE