RHSA-2020:3559 — Security Advisory

An update for firefox is now available for Red Hat Enterprise Linux 8.1 Extended Update Support.

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.

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

This update upgrades Firefox to version 78.2.0 ESR.

Security Fix(es):

• Mozilla: Attacker-induced prompt for extension installation (CVE-2020-15664)

• Mozilla: Use-After-Free when aborting an operation (CVE-2020-15669)

• Mozilla: Integer overflow in nsJPEGEncoder::emptyOutputBuffer (CVE-2020-12422)

• Mozilla: X-Frame-Options bypass using object or embed tags (CVE-2020-15648)

• Mozilla: Bypassing iframe sandbox when allowing popups (CVE-2020-15653)

• Mozilla: Type confusion for special arguments in IonMonkey (CVE-2020-15656)

• Mozilla: WebRTC permission prompt could have been bypassed by a compromised content process (CVE-2020-12424)

• Mozilla: Out of bound read in Date.parse() (CVE-2020-12425)

• Mozilla: Custom cursor can overlay user interface (CVE-2020-15654)

• Mozilla: Overriding file type when saving to disk (CVE-2020-15658)

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.