Red Hat Security Advisory: firefox security update
Red Hat has issued a security advisory for Firefox, upgrading it to version 115.12.0 ESR to address multiple vulnerabilities. These include use-after-free bugs in networking and JavaScript object transplant, timing attacks leaking external protocol handlers, sandbox bypasses by iframes, cross-origin image leaks, and memory corruption issues. The update fixes memory safety bugs affecting Firefox 127, Firefox ESR 115.12, and Thunderbird 115.12. The advisory rates the impact as Important and recommends applying the update and restarting Firefox.
AI Analysis
Technical Summary
This Red Hat security advisory addresses several vulnerabilities in Mozilla Firefox by upgrading to version 115.12.0 ESR. The fixed issues include use-after-free vulnerabilities (CVE-2024-5702, CVE-2024-5688), a timing attack leaking external protocol handlers (CVE-2024-5690), sandbox bypass by iframes (CVE-2024-5691), cross-origin image leaks via Offscreen Canvas (CVE-2024-5693), memory corruption in text fragments (CVE-2024-5696), and other memory safety bugs (CVE-2024-5700). These vulnerabilities affect Red Hat Enterprise Linux 7 variants and related platforms. The advisory provides patches in the updated Firefox ESR 115.12.0 packages and instructs users to restart Firefox after updating.
Potential Impact
The vulnerabilities fixed include use-after-free bugs that can lead to memory corruption, timing attacks that leak protocol handler information, sandbox bypass allowing iframes to open new windows, and cross-origin information leaks. These issues could potentially allow attackers to compromise browser security, bypass sandbox restrictions, or leak sensitive data. The advisory rates the overall security impact as Important (high severity). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A security update to Firefox version 115.12.0 ESR is available from Red Hat for affected Red Hat Enterprise Linux 7 products. Users should apply this update promptly and restart Firefox to ensure the fixes take effect. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258 for detailed guidance. No additional mitigations are specified beyond applying the official update.
Red Hat Security Advisory: firefox security update
Description
Red Hat has issued a security advisory for Firefox, upgrading it to version 115.12.0 ESR to address multiple vulnerabilities. These include use-after-free bugs in networking and JavaScript object transplant, timing attacks leaking external protocol handlers, sandbox bypasses by iframes, cross-origin image leaks, and memory corruption issues. The update fixes memory safety bugs affecting Firefox 127, Firefox ESR 115.12, and Thunderbird 115.12. The advisory rates the impact as Important and recommends applying the update and restarting Firefox.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This Red Hat security advisory addresses several vulnerabilities in Mozilla Firefox by upgrading to version 115.12.0 ESR. The fixed issues include use-after-free vulnerabilities (CVE-2024-5702, CVE-2024-5688), a timing attack leaking external protocol handlers (CVE-2024-5690), sandbox bypass by iframes (CVE-2024-5691), cross-origin image leaks via Offscreen Canvas (CVE-2024-5693), memory corruption in text fragments (CVE-2024-5696), and other memory safety bugs (CVE-2024-5700). These vulnerabilities affect Red Hat Enterprise Linux 7 variants and related platforms. The advisory provides patches in the updated Firefox ESR 115.12.0 packages and instructs users to restart Firefox after updating.
Potential Impact
The vulnerabilities fixed include use-after-free bugs that can lead to memory corruption, timing attacks that leak protocol handler information, sandbox bypass allowing iframes to open new windows, and cross-origin information leaks. These issues could potentially allow attackers to compromise browser security, bypass sandbox restrictions, or leak sensitive data. The advisory rates the overall security impact as Important (high severity). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A security update to Firefox version 115.12.0 ESR is available from Red Hat for affected Red Hat Enterprise Linux 7 products. Users should apply this update promptly and restart Firefox to ensure the fixes take effect. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258 for detailed guidance. No additional mitigations are specified beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2024:3951
- Cve Count
- 7
- Additional Cves
- ["CVE-2024-5690","CVE-2024-5691","CVE-2024-5693","CVE-2024-5696","CVE-2024-5700","CVE-2024-5702"]
Threat ID: 6a3da1f44853345fc1833e59
Added to database: 06/25/2026, 21:47:32 UTC
Last enriched: 06/25/2026, 22:48:10 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 17
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