Squid: Multiple Denial of Service vulnerabilities — GLSA 200701-22

Two vulnerabilities have been found in Squid which make it susceptible to Denial of Service attacks.

Affected Packages

net-proxy/squid on all architectures
Affected versions < 2.6.7
Unaffected versions >= 2.6.7

Background

Squid is a multi-protocol proxy server.

Description

Squid fails to correctly handle ftp:// URI's. There is also an error in the external_acl queue which can cause an infinite looping condition.

Impact

An attacker could attempt to retrieve a specially crafted URI via a Squid server causing the service to crash. If an attacker could generate a sufficiently high load on the Squid services, they could cause a Denial of Service by forcing Squid into an infinite loop.

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-2.6.7"

References

Release Date
January 25, 2007

Latest Revision
January 25, 2007: 01

Severity
normal

Exploitable
remote

Bugzilla entries