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Red Hat: Thunderbird Important Certificate Issue RHSA-2011:1243-01

red hat
Calendar Grey August 31, 2011
Dist Redhat Esm H88
Critical Thunderbird security patch for Red Hat, addressing fake certificate problem affecting users.
An updated thunderbird package that fixes one security issue is now available for Red Hat Enterprise Linux 4, 5, and 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

Mozilla Thunderbird is a standalone mail and newsgroup client.
It was found that a Certificate Authority (CA) issued a fraudulent HTTPS certificate. This update renders any HTTPS certificates signed by that CA as untrusted, except for a select few. The now untrusted certificates that were issued before July 1, 2011 can be manually re-enabled and used again at your own risk in Thunderbird; however, affected certificates issued after this date cannot be re-enabled or used. (BZ#734316)
All Thunderbird users should upgrade to this updated package, which resolves this issue. All running instances of Thunderbird must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory Red Hat security impact important fix thunderbird mail client certificate issue

References

https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: thunderbird-1.5.0.12-42.el4.i386.rpm thunderbird-debuginfo-1.5.0.12-42.el4.i386.rpm
ia64: thunderbird-1.5.0.12-42.el4.ia64.rpm thunderbird-debuginfo-1.5.0.12-42.el4.ia64.rpm
ppc: thunderbird-1.5.0.12-42.el4.ppc.rpm thunderbird-debuginfo-1.5.0.12-42.el4.ppc.rpm
s390: thunderbird-1.5.0.12-42.el4.s390.rpm thunderbird-debuginfo-1.5.0.12-42.el4.s390.rpm
s390x: thunderbird-1.5.0.12-42.el4.s390x.rpm thunderbird-debuginfo-1.5.0.12-42.el4.s390x.rpm
x86_64: thunderbird-1.5.0.12-42.el4.x86_64.rpm thunderbird-debuginfo-1.5.0.12-42.el4.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386: thunderbird-1.5.0.12-42.el4.i386.rpm thunderbird-debuginfo-1.5.0.12-42.el4.i386.rpm
x86_64: thunderbird-1.5.0.12-42.el4.x86_64.rpm thunderbird-debuginfo-1.5.0.12-42.el4.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source:
i386: thunderbird-1.5.0.12-42.el4.i386.rpm thunderbird-debuginfo-1.5.0.12-42.el4.i386.rpm
ia64: thunderbird-1.5.0.12-42.el4.ia64.rpm thunderbird-debuginfo-1.5.0.12-42.el4.ia64.rpm
x86_64: thunderbird-1.5.0.12-42.el4.x86_64.rpm thunderbird-debuginfo-1.5.0.12-42.el4.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
Source:
i386: thunderbird-1.5.0.12-42.el4.i386.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2011:1243-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:1243.html
Issue date: 2011-08-31

Topic

An updated thunderbird package that fixes one security issue is nowavailable for Red Hat Enterprise Linux 4, 5, and 6.The Red Hat Security Response Team has rated this update as havingimportant security impact.

Topics%20covered

Topics Covered

security advisory Red Hat security impact important fix thunderbird mail client certificate issue

Relevant Releases Architectures

RHEL Optional Productivity Applications (v. 5 server) - i386, x86_64

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

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

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

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

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

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

Bugs Fixed

734316 - Fraudulent certificates signed by DigiNotar CA certificate (MFSA 2011-34)

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