Vulmon Recent Vulnerabilities Research Posts Trends Blog About Contact
5
CVSSv2

CVE-2012-4561

Published: 30/11/2012 Updated: 29/08/2017
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Subscribe to Libssh

Vulnerability Summary

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 prior to 0.5.3 free "an invalid pointer on an error path," which might allow remote malicious users to cause a denial of service (crash) via unspecified vectors.

Vulnerable Product Search on Vulmon Subscribe to Product

libssh libssh 0.4.8

libssh libssh 0.4.7

libssh libssh 0.5.0

libssh libssh

libssh libssh 0.5.1

Vendor Advisories

Ubuntu Security Notice: libssh vulnerabilities
linssh could be made to crash or run programs if it received specially crafted network traffic ...
Debian Security Advisories: DSA-2577-1 libssh -- several vulnerabilities
Multiple vulnerabilities were discovered in libssh by Florian Weimer and Xi Wang: CVE-2012-4559: multiple double free() flaws CVE-2012-4561: multiple invalid free() flaws CVE-2012-4562: multiple improper overflow checks Those could lead to a denial of service by making an SSH client linked to libssh crash, and maybe even arbitrary code exec ...

References

NVD-CWE-noinfohttp://www.libssh.org/2012/11/20/libssh-0-5-3-security-release/http://www.securityfocus.com/bid/56604http://www.openwall.com/lists/oss-security/2012/11/20/3https://bugzilla.redhat.com/show_bug.cgi?id=871617http://www.debian.org/security/2012/dsa-2577http://lists.opensuse.org/opensuse-updates/2012-12/msg00016.htmlhttp://www.ubuntu.com/usn/USN-1640-1http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.htmlhttp://lists.opensuse.org/opensuse-updates/2013-01/msg00021.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.htmlhttp://www.mandriva.com/security/advisories?name=MDVSA-2012:175https://exchange.xforce.ibmcloud.com/vulnerabilities/80220https://usn.ubuntu.com/1640-1/https://nvd.nist.gov
VMScore
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-2907hardcodedinjectCVE-2024-20359CVE-2024-2467CVE-2024-4077CVE-2024-22391cameraCVE-2024-20353
Vulnerability Notification Service
You don’t have to wait for vulnerability scanning results
Get Started

Vulmon Search

Vulmon Search is a vulnerability search engine. It gives comprehensive vulnerability information through a very simple user interface.

About

Home Recent Vulnerabilities Research Posts Trends Blog About Contact

Products

Vulmon Search Vulmon Research Vulmon Alerts Vulmap

Connect

Twitter Reddit Linkedin Facebook