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TITLE:
Mocha W32 LPD Request Processing Buffer Overflow

SECUNIA ADVISORY ID:
SA39394

VERIFY ADVISORY:
http://secunia.com/advisories/39394/

DESCRIPTION:
mr_me has discovered a vulnerability in Mocha W32 LPD, which can be
exploited by malicious people to cause a DoS (Denial of Service) or
potentially compromise a vulnerable system.

The vulnerability is caused due to a boundary error in lpd.exe when
processing LPD requests. This can be exploited to cause a heap-based
buffer overflow via a specially crafted "Remove jobs" LPD request
sent to TCP port 515.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in demo version 1.9. Other versions
may also be affected.

SOLUTION:
Restrict network access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
mr_me

ORIGINAL ADVISORY:
http://www.corelan.be:8800/index.php/forum/security-advisories/corelan-10-023-mocha-lpd-remote-buffer-overflow/

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