CVE-2009-0478

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 72.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-02-08 · updated 2026-06-16
Weakness: CWE-20

Description

Squid 2.7 to 2.7.STABLE5, 3.0 to 3.0.STABLE12, and 3.1 to 3.1.0.4 allows remote attackers to cause a denial of service via an HTTP request with an invalid version number, which triggers a reachable assertion in (1) HttpMsg.c and (2) HttpStatusLine.c.

Affected products

Squid: 2.7.stable1, 2.7.stable2, 2.7.stable3, 2.7.stable4, 2.7.stable5, 3.0.stable1 (+16)

References

http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00000.html
http://secunia.com/advisories/33731
http://secunia.com/advisories/34467
http://security.gentoo.org/glsa/glsa-200903-38.xml
http://www.mandriva.com/security/advisories?name=MDVSA-2009:034
http://www.securityfocus.com/archive/1/500653/100/0/threaded
http://www.securityfocus.com/bid/33604
http://www.securitytracker.com/id?1021684
http://www.squid-cache.org/Advisories/SQUID-2009_1.txt
http://www.squid-cache.org/Versions/v2/2.7/changesets/12432.patch
https://bugzilla.redhat.com/show_bug.cgi?id=484246
https://www.exploit-db.com/exploits/8021

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