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.
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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
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