RedHat: RHSA-2020-1489:01 Important: thunderbird security update
An update for thunderbird is now available for Red Hat Enterprise Linux 7
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.
Summary
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.
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 Client (v. 7):
Source:
thunderbird-68.7.0-1.el7_8.src.rpm
x86_64:
thunderbird-68.7.0-1.el7_8.x86_64.rpm
thunderbird-debuginfo-68.7.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
Source:
thunderbird-68.7.0-1.el7_8.src.rpm
ppc64le:
thunderbird-68.7.0-1.el7_8.ppc64le.rpm
thunderbird-debuginfo-68.7.0-1.el7_8.ppc64le.rpm
x86_64:
thunderbird-68.7.0-1.el7_8.x86_64.rpm
thunderbird-debuginfo-68.7.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
thunderbird-68.7.0-1.el7_8.src.rpm
x86_64:
thunderbird-68.7.0-1.el7_8.x86_64.rpm
thunderbird-debuginfo-68.7.0-1.el7_8.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/
Topic
An update for thunderbird is now available for Red Hat Enterprise Linux 7.
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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - 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
