Search This Blog

Tuesday, July 31, 2012

[SECURITY] [DSA 2518-1] krb5 security update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512


- -------------------------------------------------------------------------
Debian Security Advisory DSA-2518-1 security@debian.org
http://www.debian.org/security/ Yves-Alexis Perez
July 31, 2012 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

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: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
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=lkou
-----END PGP SIGNATURE-----


--
To UNSUBSCRIBE, email to debian-security-announce-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
Archive: http://lists.debian.org/20120731195612.4D07118AB@scapa.corsac.net

No comments: