CVE-2009-0478

Summary

CVE	CVE-2009-0478
State	PUBLISHED
Assigner	mitre
Source Priority	CVE Program / NVD first with legacy fallback
Published	2009-02-08 22:30:00 UTC
Updated	2026-04-23 00:35:47 UTC
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.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector

Network

Access Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Application	Squid	Squid	2.7.stable1	All	All	All
Application	Squid	Squid	2.7.stable2	All	All	All
Application	Squid	Squid	2.7.stable3	All	All	All
Application	Squid	Squid	2.7.stable4	All	All	All
Application	Squid	Squid	2.7.stable5	All	All	All
Application	Squid	Squid	3.0.stable1	All	All	All
Application	Squid	Squid	3.0.stable10	All	All	All
Application	Squid	Squid	3.0.stable11	All	All	All
Application	Squid	Squid	3.0.stable12	All	All	All
Application	Squid	Squid	3.0.stable2	All	All	All
Application	Squid	Squid	3.0.stable3	All	All	All
Application	Squid	Squid	3.0.stable4	All	All	All
Application	Squid	Squid	3.0.stable5	All	All	All
Application	Squid	Squid	3.0.stable6	All	All	All
Application	Squid	Squid	3.0.stable7	All	All	All
Application	Squid	Squid	3.0.stable8	All	All	All
Application	Squid	Squid	3.0.stable9	All	All	All
Application	Squid	Squid	3.1	All	All	All
Application	Squid	Squid	3.1.0.1	All	All	All
Application	Squid	Squid	3.1.0.2	All	All	All
Application	Squid	Squid	3.1.0.3	All	All	All
Application	Squid	Squid	3.1.0.4	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

References

Reference	Source	Link	Tags
Squid < 3.1 5 HTTP Version Number Parsing Denial of Service Exploit	af854a3a-2127-422b-91ae-364da2661108	www.exploit-db.com
[security-announce] SUSE Security Summary Report: SUSE-SR:2009:005	af854a3a-2127-422b-91ae-364da2661108	lists.opensuse.org
Squid HTTP Version Number Parsing Denial of Service - Secunia Advisories - Vulnerability Information - Secunia.com	af854a3a-2127-422b-91ae-364da2661108	secunia.com	Vendor Advisory
Squid Web Proxy Cache HTTP Version Number Parsing Denial of Service Vulnerability	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com	Exploit, Patch
Support / Security / Advisories / / MDVSA-2009:034 \| Mandriva	af854a3a-2127-422b-91ae-364da2661108	www.mandriva.com
Squid HTTP Request Processing Error Lets Remote Users Deny Service - SecurityTracker	af854a3a-2127-422b-91ae-364da2661108	www.securitytracker.com
www.squid-cache.org/Versions/v2/2.7/changesets/12432.patch	af854a3a-2127-422b-91ae-364da2661108	www.squid-cache.org	Vendor Advisory
www.squid-cache.org/Advisories/SQUID-2009_1.txt	af854a3a-2127-422b-91ae-364da2661108	www.squid-cache.org	Vendor Advisory
SecurityFocus	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com
Bug 484246 – CVE-2009-0478 Squid denial of service flaw	af854a3a-2127-422b-91ae-364da2661108	bugzilla.redhat.com
Gentoo update for Squid - Secunia.com	af854a3a-2127-422b-91ae-364da2661108	secunia.com	Vendor Advisory
Gentoo Linux Documentation -- Squid: Multiple Denial of Service vulnerabilities	af854a3a-2127-422b-91ae-364da2661108	security.gentoo.org
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

Vendor Comments And Credit

Organization	Published	Contributor	Statement
Red Hat	2009-02-09	Joshua Bressers	Not vulnerable. This issue did not affect the version of Squid as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.

There are currently no legacy QID mappings associated with this CVE.