Secunia Security Advisory - landser has discovered a vulnerability in CrossFire, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a vulnerable system.
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TITLE:
CrossFire "SetUp()" Buffer Overflow Vulnerability
SECUNIA ADVISORY ID:
SA19237
VERIFY ADVISORY:
http://secunia.com/advisories/19237/
CRITICAL:
Highly critical
IMPACT:
DoS, System access
WHERE:
>From remote
SOFTWARE:
CrossFire 1.x
http://secunia.com/product/8396/
DESCRIPTION:
landser has discovered a vulnerability in CrossFire, which can be
exploited by malicious people to cause a DoS (Denial of Service) and
potentially to compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the
"SetUp()" function in "request.c" when handling the "setup" command.
This can be exploited to cause a stack-based buffer overflow and may
allow arbitrary code execution via a specially-crafted "setup"
command sent to the server.
The vulnerability has been confirmed in version 1.9.0. Other versions
may also be affected.
SOLUTION:
Host network games only when connected to trusted networks.
PROVIDED AND/OR DISCOVERED BY:
landser
ORIGINAL ADVISORY:
http://www.milw0rm.com/exploits/1582
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