CVE-2009-2621: Buffer Overflow

Published Jul 28, 2009
·
Updated

Squid 3.0 through 3.0.STABLE16 and 3.1 through 3.1.0.11 does not properly enforce "buffer limits and related bound checks," which allows remote attackers to cause a denial of service via (1) an incomplete request or (2) a request with a large header size, related to (a) HttpMsg.cc and (b) clientside.cc.

Affected Software

29 affected components
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0
Squid-Cache Squid=3.0-rc1
Squid-Cache Squid=3.0-rc4
Squid-Cache Squid=3.1
Squid-Cache Squid=3.1.0.1
Squid-Cache Squid=3.1.0.2
Squid-Cache Squid=3.1.0.3
Squid-Cache Squid=3.1.0.4

Remediation

Patch Available

http://www.squid-cache.org/Versions/v3/3.1/changesets/b9654.patch

Event History

Jul 28, 2009
CVE Published
via MITRE·05:00 PM
Data Sourced
via MITRE·05:00 PM
Description

Frequently Asked Questions

1

What is the severity of CVE-2009-2621?

CVE-2009-2621 is classified as a denial of service vulnerability which can severely impact the availability of the affected systems.

2

How do I fix CVE-2009-2621?

To fix CVE-2009-2621, upgrade to a patched version of Squid that addresses the buffer limits and bound checks.

3

Which versions of Squid are affected by CVE-2009-2621?

CVE-2009-2621 affects Squid versions 3.0 through 3.0.STABLE16 and 3.1 through 3.1.0.11.

4

What types of requests can exploit CVE-2009-2621?

CVE-2009-2621 can be exploited via incomplete requests or requests with excessively large header sizes.

5

What components of Squid are impacted by CVE-2009-2621?

CVE-2009-2621 relates specifically to issues in HttpMsg.cc and client_sid within Squid.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
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