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Red Hat Enterprise Linux 6 RHSA-2011:0959-01 Moderate: Mutt SSL Flaw

red hat
Calendar Grey July 19, 2011
Scroller Redhat Esm H88
Red Hat releases a moderate advisory for nano update, tackling SSH key authentication flaws. Update suggested.
An updated mutt package that fixes one security issue is now available for Red Hat Enterprise Linux 6

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 https://access.redhat.com/kb/docs/DOC-11259

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate security fix Red Hat Enterprise Linux mutt SSL flaw

References

https://access.redhat.com/security/cve/CVE-2011-1429 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.i686.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.i686.rpm
x86_64: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.i686.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.i686.rpm
ppc64: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.ppc64.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.ppc64.rpm
s390x: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.s390x.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.s390x.rpm
x86_64: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
i386: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.i686.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.i686.rpm
x86_64: mutt-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm mutt-debuginfo-1.5.20-2.20091214hg736b6a.el6_1.1.x86_64.rpm


Read the Full Advisory


Advisory ID: RHSA-2011:0959-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0959.html
Issue date: 2011-07-19

Topic

An updated mutt package that fixes one security issue is now available forRed Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate security fix Red Hat Enterprise Linux mutt SSL flaw

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Bugs Fixed

688755 - CVE-2011-1429 mutt: SSL host name check may be skipped when verifying certificate chain

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