(RHSA-2021:0656) Critical: firefox security update

2021-02-24T14:31:18
ID RHSA-2021:0656
Type redhat
Reporter RedHat
Modified 2021-02-24T14:53:41

Description

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

This update upgrades Firefox to version 78.8.0 ESR.

Security Fix(es):

  • Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23968)

  • Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23969)

  • Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 (CVE-2021-23978)

  • Mozilla: MediaError message property could have leaked information about cross-origin resources (CVE-2021-23973)

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.