RedHat: RHSA-2020-2033:01 Critical: firefox security update
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.
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
After installing the update, Firefox must be restarted for the changes to
take effect.
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 E4S (v. 8.0):
Source:
firefox-68.8.0-1.el8_0.src.rpm
aarch64:
firefox-68.8.0-1.el8_0.aarch64.rpm
firefox-debuginfo-68.8.0-1.el8_0.aarch64.rpm
firefox-debugsource-68.8.0-1.el8_0.aarch64.rpm
ppc64le:
firefox-68.8.0-1.el8_0.ppc64le.rpm
firefox-debuginfo-68.8.0-1.el8_0.ppc64le.rpm
firefox-debugsource-68.8.0-1.el8_0.ppc64le.rpm
s390x:
firefox-68.8.0-1.el8_0.s390x.rpm
firefox-debuginfo-68.8.0-1.el8_0.s390x.rpm
firefox-debugsource-68.8.0-1.el8_0.s390x.rpm
x86_64:
firefox-68.8.0-1.el8_0.x86_64.rpm
firefox-debuginfo-68.8.0-1.el8_0.x86_64.rpm
firefox-debugsource-68.8.0-1.el8_0.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 firefox is now available for Red Hat Enterprise Linux 8.0Update Services for SAP Solutions.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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux AppStream E4S (v. 8.0) - 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
