CVE-2012-1014

Publication date 31 July 2012

Last updated 24 July 2024

Ubuntu priority

Description

The process_as_req function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.10.x before 1.10.3 does not initialize a certain structure member, which allows remote attackers to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a malformed AS-REQ request.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
krb5	12.04 LTS precise	Fixed 1.10+dfsg~beta1-2ubuntu0.3
	11.10 oneiric	Not affected
	11.04 natty	Not affected
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not affected

Notes

sbeattie

krb5 1.10 and newer code execution potential probably blocked by glibc double-free detection

Patch details

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

Package	Patch details
krb5	Upstream: http://web.mit.edu/kerberos/advisories/2012-001-patch.txt

References

Related Ubuntu Security Notices (USN)

USN-1520-1
Kerberos vulnerabilities
31 July 2012