CVEvulnerability
CVE-2013-0176
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2013-02-05
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-399
Description
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.
Affected configurations
• libssh libssh (<= 0.5.3)
• libssh libssh 0.4.7
• libssh libssh 0.4.8
• libssh libssh 0.5.0
• libssh libssh 0.5.1
• libssh libssh 0.5.2
Related
Weakness · not in database (1)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html lists.fedoraproject.org
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html lists.fedoraproject.org
- http://secunia.com/advisories/51982 Vendor Advisory
- http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/ Patch, Vendor Advisory
- http://www.ubuntu.com/usn/USN-1707-1 www.ubuntu.com
- https://exchange.xforce.ibmcloud.com/vulnerabilities/81595 exchange.xforce.ibmcloud.com
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html lists.fedoraproject.org
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html lists.fedoraproject.org
- http://secunia.com/advisories/51982 Vendor Advisory
- http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/ Patch, Vendor Advisory
- http://www.ubuntu.com/usn/USN-1707-1 www.ubuntu.com
- https://exchange.xforce.ibmcloud.com/vulnerabilities/81595 exchange.xforce.ibmcloud.com