Red Hat Security Advisory: firefox security update
Multiple security vulnerabilities affecting Mozilla Firefox and Thunderbird have been addressed in a Red Hat security update. These include denial-of-service, sandbox escape, same-origin policy bypass, uninitialized memory, and memory safety bugs. The fixes are included in Firefox ESR 128.14 and related versions for Red Hat Enterprise Linux 8. The update is rated as Important by Red Hat Product Security.
AI Analysis
Technical Summary
This Red Hat security advisory addresses several vulnerabilities in Mozilla Firefox and Thunderbird, including CVE-2025-9179 (sandbox escape due to invalid pointer in the Audio/Video GMP component), CVE-2025-9180 (same-origin policy bypass in Graphics Canvas2D), CVE-2025-9181 (uninitialized memory in the JavaScript engine), CVE-2025-9182 (denial-of-service via out-of-memory in Graphics WebRender), and CVE-2025-9185 (memory safety bugs). These issues affect various components related to graphics rendering, audio/video processing, and JavaScript execution. The vulnerabilities are fixed in Firefox ESR 128.14 and related ESR and standard versions, as packaged for Red Hat Enterprise Linux 8 and its Extended Life Cycle releases across multiple architectures.
Potential Impact
The vulnerabilities could allow denial-of-service conditions, sandbox escapes, bypass of same-origin policy, exposure of uninitialized memory, and other memory safety issues in Firefox and Thunderbird. These could potentially be leveraged to compromise the security boundaries of the browser or email client, leading to information disclosure or execution of unauthorized code. The advisory rates the impact as Important (high severity). There are no known exploits in the wild at the time of publication.
Mitigation Recommendations
Red Hat has released updated Firefox packages for Red Hat Enterprise Linux 8 and Extended Life Cycle 8.10 that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2025:14442 and the referenced article https://access.redhat.com/articles/11258. This update includes fixes for all listed CVEs. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: firefox security update
Description
Multiple security vulnerabilities affecting Mozilla Firefox and Thunderbird have been addressed in a Red Hat security update. These include denial-of-service, sandbox escape, same-origin policy bypass, uninitialized memory, and memory safety bugs. The fixes are included in Firefox ESR 128.14 and related versions for Red Hat Enterprise Linux 8. The update is rated as Important by Red Hat Product Security.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This Red Hat security advisory addresses several vulnerabilities in Mozilla Firefox and Thunderbird, including CVE-2025-9179 (sandbox escape due to invalid pointer in the Audio/Video GMP component), CVE-2025-9180 (same-origin policy bypass in Graphics Canvas2D), CVE-2025-9181 (uninitialized memory in the JavaScript engine), CVE-2025-9182 (denial-of-service via out-of-memory in Graphics WebRender), and CVE-2025-9185 (memory safety bugs). These issues affect various components related to graphics rendering, audio/video processing, and JavaScript execution. The vulnerabilities are fixed in Firefox ESR 128.14 and related ESR and standard versions, as packaged for Red Hat Enterprise Linux 8 and its Extended Life Cycle releases across multiple architectures.
Potential Impact
The vulnerabilities could allow denial-of-service conditions, sandbox escapes, bypass of same-origin policy, exposure of uninitialized memory, and other memory safety issues in Firefox and Thunderbird. These could potentially be leveraged to compromise the security boundaries of the browser or email client, leading to information disclosure or execution of unauthorized code. The advisory rates the impact as Important (high severity). There are no known exploits in the wild at the time of publication.
Mitigation Recommendations
Red Hat has released updated Firefox packages for Red Hat Enterprise Linux 8 and Extended Life Cycle 8.10 that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2025:14442 and the referenced article https://access.redhat.com/articles/11258. This update includes fixes for all listed CVEs. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:14442
- Cve Count
- 5
- Additional Cves
- ["CVE-2025-9180","CVE-2025-9181","CVE-2025-9182","CVE-2025-9185"]
- Cvss Version
- null
Threat ID: 6a3cc29d4853345fc16d3a26
Added to database: 06/25/2026, 05:54:37 UTC
Last enriched: 06/25/2026, 06:03:52 UTC
Last updated: 06/25/2026, 13:00:48 UTC
Views: 4
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