squid -- SNMP module denial-of-service vulnerability

Description:

The Squid-2.5 patches page notes:

If a certain malformed SNMP request is received squid restarts with a Segmentation Fault error.

This only affects squid installations where SNMP is explicitly enabled via "make config". As a workaround, SNMP can be disabled by defining "snmp_port 0" in squid.conf.

Squid security advisory SQUID-2008:1 explains that Squid-3 versions up to and including Squid-3.0.STABLE6 are affected by this error, too.

References:

• CVE name CVE-2004-0918
• URL: <http://www.idefense.com/application/poi/display?id=152&type=vulnerabilities>
• URL: <http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE6-SNMP_core_dump>
• URL: <http://www.squid-cache.org/Advisories/SQUID-2004_3.txt>
• URL: <http://www.squid-cache.org/Advisories/SQUID-2008_1.txt>

Affects:

• squid <2.5.7
• squid >=3.0.0 <3.0.7

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