Critical: firefox security update

Synopsis

Critical: firefox security update

Type/Severity

Security Advisory: Critical

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 impact of Critical. 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.

Description

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 60.7.2 ESR.

Security Fix(es):

• Mozilla: Type confusion in Array.pop (CVE-2019-11707)
  
• Mozilla: Sandbox escape using Prompt:Open (CVE-2019-11708)
  

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.

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.

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 1721789 - CVE-2019-11707 Mozilla: Type confusion in Array.pop
• BZ - 1722673 - CVE-2019-11708 Mozilla: Sandbox escape using Prompt:Open

CVEs

• CVE-2019-11707
• CVE-2019-11708

References

• https://access.redhat.com/security/updates/classification/#critical
• https://www.mozilla.org/en-US/security/advisories/mfsa2019-18/
• https://www.mozilla.org/en-US/security/advisories/mfsa2019-19/