CVE-2013-0176

Publication date 22 January 2013

Last updated 24 July 2024

Ubuntu priority

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.

Status

Show unmaintained releases

No maintained releases are affected by this CVE.

Package	Ubuntu Release	Status
libssh	12.10 quantal	Fixed 0.5.2-1ubuntu0.12.10.2
	12.04 LTS precise	Fixed 0.5.2-1ubuntu0.12.04.2
	11.10 oneiric	Fixed 0.5.2-1ubuntu0.11.10.2
	10.04 LTS lucid	Fixed 0.4.2-1ubuntu1.2
	8.04 LTS hardy	Ignored end of life

How can I get the fixes?
What do statuses mean?
Patch details

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libssh	Upstream: ?h=v0-5

References

MITRE
NVD
Launchpad
Debian

Related Ubuntu Security Notices (USN)

USN-1707-1
libssh vulnerability
28 January 2013

Other references

http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/
https://www.cve.org/CVERecord?id=CVE-2013-0176