TITLE:
unalz Filename Handling Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA17774

VERIFY ADVISORY:
http://secunia.com/advisories/17774/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
unalz 0.x
http://secunia.com/product/6230/

DESCRIPTION:
Ulf Harnhammar has reported a vulnerability in unalz, which
potentially can be exploited by malicious people to compromise a
user's system.

The vulnerability is caused due to a boundary error when handling an
".alz" archive that contains a file with an overly long filename.
This can be exploited to cause a buffer overflow when a specially
crafted ".alz" archive is extracted.

The vulnerability has been reported in version 0.52. Prior versions
may also be affected.

SOLUTION:
Update to version 0.53.
http://www.kipple.pe.kr/win/unalz/

PROVIDED AND/OR DISCOVERED BY:
Ulf Harnhammar

ORIGINAL ADVISORY:
Debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340842

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