A cyrus-sasl2 security update has been released for Debian 8

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Debian Security Advisory DSA-3368-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
September 25, 2015 https://www.debian.org/security/faq
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Package : cyrus-sasl2
CVE ID : CVE-2013-4122
Debian Bug : 784112

It was discovered that cyrus-sasl2, a library implementing the Simple
Authentication and Security Layer, does not properly handle certain
invalid password salts. A remote attacker can take advantage of this
flaw to cause a denial of service.

For the stable distribution (jessie), this problem has been fixed in
version 2.1.26.dfsg1-13+deb8u1.

For the unstable distribution (sid), this problem has been fixed in
version 2.1.26.dfsg1-14.

We recommend that you upgrade your cyrus-sasl2 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/