By rssfeeds-admin This flaw, classified with a “high” impact rating, was discovered in the nsHttpTransaction component—the core module responsible for handling HTTP transactions within the browser.
Technical Details: Race Condition and Memory Corruption
A race condition occurs when multiple threads or processes attempt to access shared resources simultaneously, resulting in unpredictable behavior.
In this case, the vulnerability was found in nsHttpTransaction, a critical part of Firefox’s network stack.
If exploited, this race condition could lead to memory corruption—a state where the contents of memory are unintentionally modified, potentially allowing attackers to execute arbitrary code or crash the browser.
The Mozilla Fuzzing Team, credited with reporting the issue, identified that the flaw could be triggered under specific timing conditions, making it difficult to exploit but dangerous due to its potential for remote code execution.
The vulnerability affects all Firefox versions before 137.0.2, making timely updates essential.
Security Impact and Risk Assessment
Mozilla assigned a “high” severity to CVE-2025-3608, reflecting the risk of memory corruption and the possibility of further exploitation.
According to CVSS v3.0 metrics, the vulnerability carries a base score of 8.1, indicating a significant threat level.
The attack vector is remote (AV:N), with high impact on confidentiality, integrity, and availability (C:H/I:H/A:H), but exploitation requires a high degree of attacker skill (AC:H).
The vulnerability does not require authentication (PR:N) or user interaction (UI:N), further elevating its risk profile.
Fortunately, as of the update, no known exploits have been reported in the wild, but users are strongly advised to update immediately.
Additional Fixes in Firefox 137.0.2
Beyond the critical security patch, Firefox 137.0.2 includes several bug fixes and improvements:
- Resolved frequent restarts during update processes.
- Fixed DRM playback issues related to Microsoft PlayReady.
- Addressed problems with HTML5 video player interactions.
- Improved accessibility in the PDF signature feature.
- Corrected issues with file picker display and context menu paste operations.
Mozilla’s Response and User Recommendations
Mozilla acted swiftly, releasing the patch within days of the vulnerability’s discovery.
The update is available across all supported platforms, and users can download it via the official website or through automatic browser updates.
Risk Factor Table: CVE-2025-3608
| Risk Factor | Value/Description |
|---|---|
| CVE Identifier | CVE-2025-3608 |
| Component | nsHttpTransaction |
| Severity | High |
| CVSS v3.0 Score | 8.1 |
| Attack Vector | Network (AV:N) |
| Attack Complexity | High (AC:H) |
| Privileges Req. | None (PR:N) |
| User Interaction | None (UI:N) |
| Confidentiality | High (C:H) |
| Integrity | High (I:H) |
| Availability | High (A:H) |
| Exploits Known | None as of April 16, 2025 |
| Fixed in Version | Firefox 137.0.2 |
| Patch Date | April 15, 2025 |
The rapid release of Firefox 137.0.2 underscores Mozilla’s commitment to browser security.
Users and system administrators are urged to update immediately to mitigate the risk associated with CVE-2025-3608.
Staying current with browser updates remains the most effective defense against emerging threats.
Find this Story Interesting! Follow us on LinkedIn and X to Get More Instant Updates
The post Firefox Addresses Severe Race Condition Vulnerability to Prevent Memory Corruption appeared first on Cyber Security News.
Discover more from RSS Feeds Cloud
Subscribe to get the latest posts sent to your email.