Issued:
2011-05-19
Updated:
2011-05-19

RHSA-2011:0545 - Low: squid security and bug fix update

Synopsis

Low: squid security and bug fix update

Type/Severity

Security Advisory Low

Topic

An updated squid package that fixes one security issue and two bugs is now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.

It was found that string comparison functions in Squid did not properly handle the comparisons of NULL and empty strings. A remote, trusted web client could use this flaw to cause the squid daemon to crash via a specially-crafted request. (CVE-2010-3072)

This update also fixes the following bugs:

  • A small memory leak in Squid caused multiple "ctx: enter level" messages to be logged to "/var/log/squid/cache.log". This update resolves the memory leak. (BZ#666533)

  • This erratum upgrades Squid to upstream version 3.1.10. This upgraded version supports the Google Instant service and introduces various code improvements. (BZ#639365)

Users of squid should upgrade to this updated package, which resolves these issues. After installing this update, the squid service will be restarted automatically.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x

Updated Packages

  • squid-3.1.10-1.el6.x86_64.rpm
  • squid-3.1.10-1.el6.s390x.rpm
  • squid-debuginfo-3.1.10-1.el6.ppc64.rpm
  • squid-debuginfo-3.1.10-1.el6.i686.rpm
  • squid-3.1.10-1.el6.src.rpm
  • squid-3.1.10-1.el6.i686.rpm
  • squid-debuginfo-3.1.10-1.el6.x86_64.rpm
  • squid-3.1.10-1.el6.ppc64.rpm
  • squid-debuginfo-3.1.10-1.el6.s390x.rpm

Fixes

CVEs

References

Additional information