RHSA-2022:0843: Important: thunderbird security update
Mozilla Thunderbird is a standalone mail and newsgroup client.This update upgrades Thunderbird to version 91.7.0.Security Fix(es): Mozilla: Use-after-free in XSLT parameter processing (CVE-2022-26485) Mozilla: Use-after-free in WebGPU IPC Framework (CVE-2022-26486) expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution (CVE-2022-25235) expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution (CVE-2022-25236) expat: Integer overflow in storeRawNames() (CVE-2022-25315) Mozilla: Use-after-free in text reflows (CVE-2022-26381) Mozilla: Browser window spoof using fullscreen mode (CVE-2022-26383) Mozilla: iframe allow-scripts sandbox bypass (CVE-2022-26384) Mozilla: Time-of-check time-of-use bug when verifying add-on signatures (CVE-2022-26387) thunderbird: Crafted email could trigger an out-of-bounds write (CVE-2022-0566) Mozilla: Temporary files downloaded to /tmp and accessible by other local users (CVE-2022-26386) 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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2022:0843?
RHSA-2022:0843 addresses critical vulnerabilities in the Mozilla Thunderbird application.
How do I fix RHSA-2022:0843?
To resolve RHSA-2022:0843, upgrade Mozilla Thunderbird to version 91.7.0-2.el8_2.
What vulnerabilities are addressed in RHSA-2022:0843?
RHSA-2022:0843 fixes use-after-free vulnerabilities in XSLT parameter processing and WebGPU IPC Framework.
Which versions of Thunderbird are affected by RHSA-2022:0843?
Versions of Thunderbird prior to 91.7.0-2.el8_2 are affected by RHSA-2022:0843.
Is RHSA-2022:0843 applicable to all platforms?
RHSA-2022:0843 is specifically applicable to the Red Hat Enterprise Linux 8 platform.