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TITLE:
Cyrus SASL "sasl_encode64()" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA35094

VERIFY ADVISORY:
http://secunia.com/advisories/35094/

DESCRIPTION:
A vulnerability has been reported in Cyrus SASL, which can be
exploited by malicious people to cause a DoS (Denial of Service) and
potentially compromise an application using the library.

The vulnerability is caused due to the unsafe use of the
"sasl_encode64()" function in lib/saslutil.c, which under certain
circumstances can lead to buffer overflows.

The vulnerability is reported in versions prior to 2.1.23.

SOLUTION:
Update to version 2.1.23.

Note: In version 2.1.23, the behavior of the "sasl_encode64()"
function changed. For more information:
http://www.kb.cert.org/vuls/id/RGII-7RYLZQ

PROVIDED AND/OR DISCOVERED BY:
US-CERT credits James Ralston.

ORIGINAL ADVISORY:
US-CERT VU#238019:
http://www.kb.cert.org/vuls/id/238019

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