Markus Vervier discovered a double free in the Python interface to the PAM library, which could lead to denial of service. For the stable distribution (squeeze), this problem has been fixed in

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Debian Security Advisory DSA-2430-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.debian.org/security/                        Moritz Muehlenhoff
March 10, 2012                         http://www.debian.org/security/faq
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Package        : python-pam
Vulnerability  : double free
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2012-1502

Markus Vervier discovered a double free in the Python interface to the 
PAM library, which could lead to denial of service.

For the stable distribution (squeeze), this problem has been fixed in
version 0.4.2-12.2+squeeze1.

For the unstable distribution (sid), this problem has been fixed in
version 0.4.2-13.

We recommend that you upgrade your python-pam 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/

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