FirefoxWeb browser · Mozilla
CVE-2014-1574
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 · uneditedMultiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown 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 · high confidenceMultiple memory corruption vulnerabilities in Mozilla's browser engine (Gecko) allow remote attackers to crash the application or potentially achieve arbitrary code execution through unknown attack vectors in Firefox before 33.0, Firefox ESR before 31.2, and Thunderbird before 31.2.
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
<= 32.0= 30.0= 31.0= 31.1.0= 31.0= 31.1.0CVSS 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
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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.
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Check if Firefox is installed and get its versionOpen Firefox and navigate to Help > About Firefox, or enter 'about:firefox' in the address bar. On command line, run 'firefox --version' or check the application file properties.Affected if The displayed version is 32.0 or lower, or exactly 30.0, 31.0, or 31.1.0
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Check if Thunderbird is installed and get its versionOpen Thunderbird and navigate to Help > About Thunderbird, or enter 'about:thunderbird' in the address bar. On command line, run 'thunderbird --version' or check the application file properties.Affected if The displayed version is exactly 31.0 or 31.1.0
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Verify the installed Mozilla product against affected version rangesCompare the detected version number to the affected ranges: Firefox <= 32.0, 30.0, 31.0, or 31.1.0; Thunderbird 31.0 or 31.1.0. Note that Firefox 33.0+ and ESR 31.2+ are NOT affected.Affected if The installed Firefox version falls within 30.0, 31.0, 31.1.0, or any version 32.0 or lower, OR the installed Thunderbird version is 31.0 or 31.1.0
You are affected if Firefox version is 32.0 or lower (including 30.0, 31.0, 31.1.0) or Thunderbird version is 31.0 or 31.1.0.
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.
From vendor dataApply vendor-supplied security updates to upgrade to Firefox 33.0+, Firefox ESR 31.2+, or Thunderbird 31.2+ to remediate these browser engine vulnerabilities.
Fix this in Firefox
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-1574 — 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 sources- www.mozilla.org
- lists.fedoraproject.org
- lists.fedoraproject.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- lists.opensuse.org
- rhn.redhat.com
- rhn.redhat.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- www.debian.org
- www.debian.org
- www.oracle.com
- www.securityfocus.com
- www.securitytracker.com
- www.securitytracker.com
- www.ubuntu.com
- www.ubuntu.com
- advisories.mageia.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- bugzilla.mozilla.org
- security.gentoo.org
- nvd.nist.gov
Practitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2014-1574 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
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- 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
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