RHSA-2022:0815 — Security Advisory
Red Hat Security Advisory: firefox security update
Severity
CriticalRed Hat Product Security
Products
Official CSAF product identity
Published · March 11, 2022
Updated · October 15, 2026
Topic
An update for firefox is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions.
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 91.7.0 ESR.
Security Fix(es):
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Mozilla: Use-after-free in XSLT parameter processing (CVE-2022-26485)
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Mozilla: Use-after-free in WebGPU IPC Framework (CVE-2022-26486)
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expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution (CVE-2022-25235)
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expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution (CVE-2022-25236)
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expat: Integer overflow in storeRawNames() (CVE-2022-25315)
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Mozilla: Use-after-free in text reflows (CVE-2022-26381)
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Mozilla: Browser window spoof using fullscreen mode (CVE-2022-26383)
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Mozilla: iframe allow-scripts sandbox bypass (CVE-2022-26384)
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Mozilla: Time-of-check time-of-use bug when verifying add-on signatures (CVE-2022-26387)
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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.