PT-2012-1037 · Libssh+1 · Libssh+1

Florian Weimer · Published 2012-11-30 · Updated 2024-06-15 · CVE-2012-4561

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions libssh versions prior to 0.5.3

Description The issue affects multiple functions in keys.c in libssh, including publickey make dss, publickey make rsa, signature from string, ssh do sign, and ssh sign session id. This might allow remote attackers to cause a denial of service via unspecified vectors. Exploitation of the vulnerabilities can lead to disruption of confidentiality, integrity, and availability of protected information and can be carried out remotely.

Recommendations For versions prior to 0.5.3, update to version 0.5.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the vulnerable functions until a patch is available.

Fix

Weakness Enumeration

CWE-399

Related Identifiers

BDU:2015-02019

BDU:2015-09720

CVE-2012-4561

DSA-2577-1

OPENSUSE-SU-2012_1620-1

OPENSUSE-SU-2024:10036-1

Affected Products

Suse

Libssh

References · 40

• http://ubuntu.com/usn/USN-1640-1 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.html · Vendor Advisory
• http://debian.org/security/2012/dsa-2577 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2012-4561 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4561 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4562 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4559 · Security Note
• http://libssh.org/2012/11/20/libssh-0-5-3-security-release · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2013-01/msg00021.html · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2012-4561 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6063 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10036-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-04569 · Security Note