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Status published
Medium
CVE-2012-4561
The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.debian.org/security/2012/dsa-2577
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:175
- https://bugzilla.redhat.com/show_bug.cgi?id=871617
- http://www.ubuntu.com/usn/USN-1640-1
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00021.html
- http://lists.opensuse.org/opensuse-updates/2012-12/msg00016.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.html
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.html
- http://www.openwall.com/lists/oss-security/2012/11/20/3
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80220
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.html
- http://www.securityfocus.com/bid/56604
- http://www.libssh.org/2012/11/20/libssh-0-5-3-security-release/
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Affected Vendor
libssh
View all reports →Affected Software
libssh
Vulnerable Versions:
0, 0.4.7, 0.4.8, 0.5.0, 0.5.1
Timeline
Official Publish:
November 30th, 2012
Last Modified:
August 6th, 2024
Added to House:
July 19th, 2026
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.