Vulnerability Monitor

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CVE-2009-2622

Squid 3.0 through 3.0.STABLE16 and 3.1 through 3.1.0.11 allows remote attackers to cause a denial of service via malformed requests including (1) "missing or mismatched protocol identifier," (2) missing or negative status value," (3) "missing version," or (4) "missing or invalid status number," related to (a) HttpMsg.cc and (b) HttpReply.cc.

Security Impact Summary

CVE-2009-2622 is a security vulnerability that . Impacting 1 product from squid-cache organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2009-07-28T17:30:01.127

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.0	Yes
Application	squid-cache	squid	3.1	Yes
Application	squid-cache	squid	3.1.0.1	Yes
Application	squid-cache	squid	3.1.0.2	Yes
Application	squid-cache	squid	3.1.0.3	Yes
Application	squid-cache	squid	3.1.0.4	Yes

References

http://secunia.com/advisories/36007 ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2009:161 ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2009:178 ([email protected])
http://www.securityfocus.com/bid/35812 ([email protected])
http://www.securitytracker.com/id?1022607 ([email protected])
http://www.squid-cache.org/Advisories/SQUID-2009_2.txt Vendor Advisory ([email protected])
http://www.squid-cache.org/Versions/v3/3.1/changesets/b9661.patch Patch, Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2009/2013 ([email protected])
http://secunia.com/advisories/36007 (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:161 (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:178 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/35812 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1022607 (af854a3a-2127-422b-91ae-364da2661108)
http://www.squid-cache.org/Advisories/SQUID-2009_2.txt Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.squid-cache.org/Versions/v3/3.1/changesets/b9661.patch Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/2013 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For squid-cache's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.