Linux Security
Linux Security
Linux Security

Debian: DSA-2518-1: krb5 security update

Date 31 Jul 2012
128
Posted By LinuxSecurity Advisories
Emmanuel Bouillon from NCI Agency discovered multiple vulnerabilities in MIT Kerberos, a daemon implementing the network authentication protocol. CVE-2012-1014


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Debian Security Advisory DSA-2518-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                         Yves-Alexis Perez
July 31, 2012                          https://www.debian.org/security/faq
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Package        : krb5
Vulnerability  : denial of service and remote code execution
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2012-1014 CVE-2012-1015
Debian Bug     : 683429

Emmanuel Bouillon from NCI Agency discovered multiple vulnerabilities in MIT
Kerberos, a daemon implementing the network authentication protocol.

CVE-2012-1014

	By sending specially crafted AS-REQ (Authentication Service Request) to a KDC
	(Key Distribution Center), an attacker could make it free an uninitialized
	pointer, corrupting the heap.  This can lead to process crash or even arbitrary
	code execution.
	.
	This CVE only affects testing (wheezy) and unstable (sid) distributions.

CVE-2012-1015

	By sending specially crafted AS-REQ to a KDC, an attacker could make it
	dereference an uninitialized pointer, leading to process crash or even
	arbitrary code execution

In both cases, arbitrary code execution is believed to be difficult to achieve,
but might not be impossible.

For the stable distribution (squeeze), this problem has been fixed in
version 1.8.3+dfsg-4squeeze6.

For the testing distribution (wheezy), this problem has been fixed in
version 1.10.1+dfsg-2.

For the unstable distribution (sid), this problem has been fixed in
version 1.10.1+dfsg-2.

We recommend that you upgrade your krb5 packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.

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