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RedHat: RHSA-2020-2050-01 Critical: Thunderbird Email Threat

red hat
Calendar Grey May 11, 2020
Dist Redhat Esm H88
Urgent Mozilla Thunderbird security patch for Red Hat Enterprise Linux 7 resolves various vulnerabilities and mandates prompt intervention.
An update for thunderbird is now available for Red Hat Enterprise Linux 7

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 68.8.0.
Security Fix(es):
* Mozilla: Use-after-free during worker shutdown (CVE-2020-12387)
* Mozilla: Memory safety bugs fixed in Firefox 76 and Firefox ESR 68.8 (CVE-2020-12395)
* usrsctp: Buffer overflow in AUTH chunk input validation (CVE-2020-6831)
* Mozilla: Arbitrary local file access with 'Copy as cURL' (CVE-2020-12392)
* Mozilla: Sender Email Address Spoofing using encoded Unicode characters(CVE-2020-12397)
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 security update buffer overflow critical red hat enterprise email security thunderbird

References

https://access.redhat.com/security/cve/CVE-2020-6831 https://access.redhat.com/security/cve/CVE-2020-12387 https://access.redhat.com/security/cve/CVE-2020-12392 https://access.redhat.com/security/cve/CVE-2020-12395 https://access.redhat.com/security/cve/CVE-2020-12397 https://access.redhat.com/security/updates/classification#critical

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: thunderbird-68.8.0-1.el7_8.src.rpm
x86_64: thunderbird-68.8.0-1.el7_8.x86_64.rpm thunderbird-debuginfo-68.8.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
Source: thunderbird-68.8.0-1.el7_8.src.rpm
ppc64le: thunderbird-68.8.0-1.el7_8.ppc64le.rpm thunderbird-debuginfo-68.8.0-1.el7_8.ppc64le.rpm
x86_64: thunderbird-68.8.0-1.el7_8.x86_64.rpm thunderbird-debuginfo-68.8.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: thunderbird-68.8.0-1.el7_8.src.rpm
x86_64: thunderbird-68.8.0-1.el7_8.x86_64.rpm thunderbird-debuginfo-68.8.0-1.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


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2050-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2050
Issue date: 2020-05-11

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 impactof Critical. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update buffer overflow critical red hat enterprise email security thunderbird

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

1831761 - CVE-2020-12387 Mozilla: Use-after-free during worker shutdown

1831763 - CVE-2020-6831 usrsctp: Buffer overflow in AUTH chunk input validation

1831764 - CVE-2020-12392 Mozilla: Arbitrary local file access with 'Copy as cURL'

1831765 - CVE-2020-12395 Mozilla: Memory safety bugs fixed in Firefox 76 and Firefox ESR 68.8

1832565 - CVE-2020-12397 Mozilla: Sender Email Address Spoofing using encoded Unicode characters

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