Squid: Multiple Denial of Service vulnerabilities — GLSA 200903-38

Multiple vulnerabilities have been found in Squid which allow for remote Denial of Service attacks.

Affected Packages

net-proxy/squid on all architectures
Affected versions < 2.7.6
Unaffected versions >= 2.7.6

Background

Squid is a full-featured web proxy cache.

Description

  • The arrayShrink function in lib/Array.c can cause an array to shrink to 0 entries, which triggers an assert error. NOTE: this issue is due to an incorrect fix for CVE-2007-6239 (CVE-2008-1612).
  • An invalid version number in a HTTP request may trigger an assertion in HttpMsg.c and HttpStatusLine.c (CVE-2009-0478).

Impact

The issues allows for Denial of Service attacks against the service via an HTTP request with an invalid version number and other specially crafted requests.

Workaround

There is no known workaround at this time.

Resolution

All Squid users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-proxy/squid-2.7.6"

References

Release Date
March 24, 2009

Latest Revision
March 24, 2009: 01

Severity
normal

Exploitable
remote

Bugzilla entries