tinyproxy invalid proxy request could cause memory corruption
| tinyproxy-memory-corruption (9079) |  Medium Risk |
Description:
tinyproxy could allow a remote attacker to execute arbitrary commands on the system. A remote attacker could send malformed proxy requests to the server to cause allocated memory to be freed twice, which could lead to the execution of arbitrary code on the server.
Platforms Affected:
- Debian, Debian Linux 3.0
- tinyproxy, tinyproxy 1.3.2
- tinyproxy, tinyproxy 1.3.3
- tinyproxy, tinyproxy 1.4.3
Remedy:
Upgrade to the latest version of tinyproxy (1.5.0 or later), available from the tinyproxy Web page. See References.
For Debian GNU/Linux 3.0:
Upgrade to the latest version of tinyproxy (1.4.3-2woody2 or later), as listed in DSA 145-1. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- tinyproxy Web site, tinyproxy NEWS at http://tinyproxy.sourceforge.net/NEWS.
- tinyproxy Web site, tinyproxy: Release Notes at http://sourceforge.net/project/shownotes.php?release_id=88790. ("Fixed a bunch of memory leaks, and situations where memory was being freed twice (a potential security problem.)")
- tinyproxy Web site, tinyproxy HTTP Proxy at http://tinyproxy.sourceforge.net.
- tinyproxy Web site, ChangeLog at http://tinyproxy.sourceforge.net/ChangeLog.
- BID-4731: tinyproxy HTTP Proxy Memory Corruption Vulnerability
- CVE-2002-0847: tinyproxy HTTP proxy 1.5.0, 1.4.3, and earlier allows remote attackers to execute arbitrary code via memory that is freed twice (double-free).
- DSA-145: tinyproxy -- doubly freed memory
Reported:
May 13, 2002
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