CVE-2012-4561

Description

The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and (5) ssh_sign_session_id functions in keys.c in libssh before 0.5.3 free an invalid pointer on an error path, which might allow remote attackers to cause a denial of service (crash) via unspecified vectors.

Risk Information

Base Score

7.5

MODERATE

Vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

3.707

Associated Vulnerability

Vulnerability	OS Platform
A tiny C SSH library (USN-1640-1) libssh-4_0.5.2-1ubuntu0.12.04.4_i386.deb	Linux
A tiny C SSH library (USN-1640-1) libssh-4_0.5.2-1ubuntu0.12.04.4_amd64.deb	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234