FortiClient Vulnerability

Security Vulnerabilities fixed in thunderbird RHSA-2021:0993

Description

Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.9.0. Security Fix(es): Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read (CVE-2021-23981) Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9 (CVE-2021-23987) Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2021-23982) Mozilla: Malicious extensions could have spoofed popup information (CVE-2021-23984) Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read (CVE-2021-23981) Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9 (CVE-2021-23987) Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2021-23982) Mozilla: Malicious extensions could have spoofed popup information (CVE-2021-23984) 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. SolutionFor details on how to apply this update, which includes the changes described in this advisory, refer to:https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.