National Cyber Awareness System

Vulnerability Summary for CVE-2013-0176

Overview

The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a "Client: Diffie-Hellman Key Exchange Init" packet.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/

Type: Advisory; Patch Information

Hyperlink:http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/

External Source: XF

Name: libssh-publickeyfromprivatekey-dos(81595)

Hyperlink:http://xforce.iss.net/xforce/xfdb/81595

External Source: UBUNTU

Name: USN-1707-1

Hyperlink:http://www.ubuntu.com/usn/USN-1707-1

External Source: SECUNIA

Name: 51982

Type: Advisory

Hyperlink:http://secunia.com/advisories/51982

External Source: FEDORA

Name: FEDORA-2013-1407

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html

External Source: FEDORA

Name: FEDORA-2013-1422

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html