Audit Linux privileges now to limit compromise, escalation, and system-wide damage. Review Linux Privileges×

Alerts This Week
Warning Icon 1 498
Alerts This Week
Warning Icon 1 498

Red Hat Enterprise Linux 8: RHSA-2020-2031-01 Critical: Firefox Update

red hat
Calendar Grey May 6, 2020
Scroller Redhat
Important Firefox security patch now released for Red Hat Enterprise Linux 8 to tackle various vulnerabilities efficiently.
An update for firefox is now available for Red Hat Enterprise Linux 8

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

After installing the update, Firefox must be restarted for the changes to take effect.

Summary

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 68.8.0 ESR.
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)
* Mozilla: Buffer overflow in SCTP chunk input validation (CVE-2020-6831)
* Mozilla: Arbitrary local file access with 'Copy as cURL' (CVE-2020-12392)
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 buffer overflow critical Red Hat Enterprise Linux memory safety firefox update local file access

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/updates/classification#critical

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: firefox-68.8.0-1.el8_2.src.rpm
aarch64: firefox-68.8.0-1.el8_2.aarch64.rpm firefox-debuginfo-68.8.0-1.el8_2.aarch64.rpm firefox-debugsource-68.8.0-1.el8_2.aarch64.rpm
ppc64le: firefox-68.8.0-1.el8_2.ppc64le.rpm firefox-debuginfo-68.8.0-1.el8_2.ppc64le.rpm firefox-debugsource-68.8.0-1.el8_2.ppc64le.rpm
s390x: firefox-68.8.0-1.el8_2.s390x.rpm firefox-debuginfo-68.8.0-1.el8_2.s390x.rpm firefox-debugsource-68.8.0-1.el8_2.s390x.rpm
x86_64: firefox-68.8.0-1.el8_2.x86_64.rpm firefox-debuginfo-68.8.0-1.el8_2.x86_64.rpm firefox-debugsource-68.8.0-1.el8_2.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-2020:2031-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2031
Issue date: 2020-05-06

Topic

An update for firefox is now available for Red Hat Enterprise Linux 8.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 buffer overflow critical Red Hat Enterprise Linux memory safety firefox update local file access

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

1831763 - CVE-2020-6831 Mozilla: Buffer overflow in SCTP 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

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.