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Secunia Security Advisory 13825

Secunia Security Advisory 13825
Posted Jan 16, 2005
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Two vulnerabilities have been reported in Squid, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.

tags | advisory, denial of service, vulnerability
MD5 | 85cbac0e3308193593175dea41ec606c

Secunia Security Advisory 13825

Change Mirror Download

TITLE:
Squid Two Vulnerabilities

SECUNIA ADVISORY ID:
SA13825

VERIFY ADVISORY:
http://secunia.com/advisories/13825/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Squid 2.x
http://secunia.com/product/310/

DESCRIPTION:
Two vulnerabilities have been reported in Squid, which can be
exploited by malicious people to cause a DoS (Denial of Service) or
potentially compromise a vulnerable system.

1) An error in the handling of invalid field values in
"WCCP_I_SEE_YOU" messages can be exploited to crash Squid by sending
a specially crafted UDP datagram with a spoofed WCCP (Web Cache
Communication Protocol) router's IP address.

Successful exploitation requires that WCCP is enabled (not default
setting).

2) A boundary error in the "gopherToHTML()" function can be exploited
via a malicious gopher server to cause a buffer overflow by responding
with a specially crafted, overly long line.

Successful exploitation may allow execution of arbitrary code.

SOLUTION:
Apply patches for 2.5.STABLE7:
http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-gopher_html_parsing.patch
http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-wccp_denial_of_service.patch

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
1)
http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-wccp_denial_of_service
2)
http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-gopher_html_parsing

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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