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RedHat 6: RHSA-2020-1488-01 Important: Thunderbird Security Issues

red hat
Calendar Grey April 16, 2020
Scroller Redhat
A crucial security patch for Firefox on CentOS 7 tackles several high-priority vulnerabilities.

An update for thunderbird is now available for Red Hat Enterprise Linux 6

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.

Summary

Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 68.7.0.
Security Fix(es):
* Mozilla: Use-after-free while running the nsDocShell destructor (CVE-2020-6819)
* Mozilla: Use-after-free when handling a ReadableStream (CVE-2020-6820)
* Mozilla: Uninitialized memory could be read when using the WebGL copyTexSubImage method (CVE-2020-6821)
* Mozilla: Memory safety bugs fixed in Firefox 75 and Firefox ESR 68.7 (CVE-2020-6825)
* Mozilla: Out of bounds write in GMPDecodeData when processing large images (CVE-2020-6822)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat update important thunderbird memory safety mail client

References

https://access.redhat.com/security/cve/CVE-2020-6819 https://access.redhat.com/security/cve/CVE-2020-6820 https://access.redhat.com/security/cve/CVE-2020-6821 https://access.redhat.com/security/cve/CVE-2020-6822 https://access.redhat.com/security/cve/CVE-2020-6825 https://access.redhat.com/security/updates/classification/#important https://www.mozilla.org/en-US/security/advisories/mfsa2020-14/

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: thunderbird-68.7.0-1.el6_10.src.rpm
i386: thunderbird-68.7.0-1.el6_10.i686.rpm thunderbird-debuginfo-68.7.0-1.el6_10.i686.rpm
x86_64: thunderbird-68.7.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-68.7.0-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source: thunderbird-68.7.0-1.el6_10.src.rpm
i386: thunderbird-68.7.0-1.el6_10.i686.rpm thunderbird-debuginfo-68.7.0-1.el6_10.i686.rpm
ppc64: thunderbird-68.7.0-1.el6_10.ppc64.rpm thunderbird-debuginfo-68.7.0-1.el6_10.ppc64.rpm
s390x: thunderbird-68.7.0-1.el6_10.s390x.rpm thunderbird-debuginfo-68.7.0-1.el6_10.s390x.rpm
x86_64: thunderbird-68.7.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-68.7.0-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source: thunderbird-68.7.0-1.el6_10.src.rpm
i386: thunderbird-68.7.0-1.el6_10.i686.rpm thunderbird-debuginfo-68.7.0-1.el6_10.i686.rpm
x86_64: thunderbird-68.7.0-1.el6_10.x86_64.rpm thunderbird-debuginfo-68.7.0-1.el6_10.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1488-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1488
Issue date: 2020-04-16

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat update important thunderbird memory safety mail client

Relevant Releases Architectures

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

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

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

Bugs Fixed

1820869 - CVE-2020-6819 Mozilla: Use-after-free while running the nsDocShell destructor

1820878 - CVE-2020-6820 Mozilla: Use-after-free when handling a ReadableStream

1821674 - CVE-2020-6821 Mozilla: Uninitialized memory could be read when using the WebGL copyTexSubImage method

1821676 - CVE-2020-6822 Mozilla: Out of bounds write in GMPDecodeData when processing large images

1821682 - CVE-2020-6825 Mozilla: Memory safety bugs fixed in Firefox 75 and Firefox ESR 68.7

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