FirefoxWeb browser · Mozilla
CVE-2011-2368
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe WebGL implementation in Mozilla Firefox 4.x through 4.0.1 does not properly restrict write operations, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe WebGL implementation in Mozilla Firefox 4.x through 4.0.1 contains a vulnerability where write operations are not properly restricted, allowing remote attackers to achieve arbitrary code execution or cause a denial of service through unspecified vectors involving the WebGL graphics API.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
FirefoxWeb browser
= 4.0= 4.0.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Determine installed Firefox versionOpen Firefox, click Help > About Firefox, or type about:support in the address bar, or check the application version through your system package manager or installer historyAffected if The version displayed is 4.0 or 4.0.1
-
Verify WebGL is accessible in the browserType about:support in the Firefox address bar and look for the WebGL section, or type about:config and search for webgl.enabled-for-all-sitesAffected if WebGL is enabled (webgl.enabled-for-all-sites is set to true or WebGL appears as available in about:support)
-
Confirm WebGL context is availableVisit a WebGL test page or type about:support and check if the WebGL Renderer field shows a graphics adapterAffected if WebGL context initializes successfully and displays renderer information
The environment is affected if Firefox version is exactly 4.0 or 4.0.1 and WebGL is enabled or accessible in the browser.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade Firefox to version 5.0 or later, which contains the fix for this WebGL write operation vulnerability. Organizations should deploy browser updates across all affected endpoints.
Firefox 5.0 or later (Firefox 5.0 was released June 21, 2011 and contains the fix for this WebGL vulnerability)
- 1. Back up any important bookmarks, passwords, or browser data from the current Firefox installation
- 2. Download Firefox 5.0 or later from the official Mozilla website (www.mozilla.org)
- 3. Close all Firefox windows and running instances
- 4. Run the Firefox installer for the new version
- 5. Launch the updated Firefox and verify the version in Help > About Firefox
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Firefox
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-2368 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2011-2368 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data