Issued:
2011-07-19
Updated:
2011-07-19

RHSA-2011:0959 - Moderate: mutt security update

Synopsis

Moderate: mutt security update

Type/Severity

Security Advisory Moderate

Topic

An updated mutt package that fixes one security issue is now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate 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

Mutt is a text-mode mail user agent.

A flaw was found in the way Mutt verified SSL certificates. When a server presented an SSL certificate chain, Mutt could ignore a server hostname check failure. A remote attacker able to get a certificate from a trusted Certificate Authority could use this flaw to trick Mutt into accepting a certificate issued for a different hostname, and perform man-in-the-middle attacks against Mutt's SSL connections. (CVE-2011-1429)

All Mutt users should upgrade to this updated package, which contains a backported patch to correct this issue. All running instances of Mutt must be restarted for this update to take effect.

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 Virtual Storage Appliance (from RHUI)6.1x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.1x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.1i386
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for Power, big endian - Extended Update Support6.1ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support6.1s390x
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 Update Support from RHUI6.1x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.1i386
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
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.ppc64.rpm
  • mutt-1.5.20-2.20091214hg736b6a.el6_1.1.src.rpm
  • mutt-1.5.20-2.20091214hg736b6a.el6_1.1.ppc64.rpm
  • mutt-1.5.20-2.20091214hg736b6a.el6_1.1.i686.rpm
  • mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.s390x.rpm
  • mutt-1.5.20-2.20091214hg736b6a.el6_1.1.s390x.rpm
  • mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm
  • mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.i686.rpm
  • mutt-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm

Fixes

CVEs

References

Additional information