FirefoxWeb browser · Mozilla

CVE-2013-1736

HIGH · 10.0 CVSS v2.0 Published 2013-09-18

Fix available

A fix is available. Upgrade to after 23.0.1 or later.

See remediation →

100/100

Remediation priority · Urgent

Remotely reachable No privileges Zero-click

Official description

NVD · unedited

The nsGfxScrollFrameInner::IsLTR function in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9, and SeaMonkey before 2.21 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to improperly establishing parent-child relationships of range-request nodes.

Technical summary

dbcve analysis · high confidence

Memory corruption vulnerability in Mozilla Firefox, Thunderbird, and SeaMonkey's nsGfxScrollFrameInner::IsLTR function. Improper parent-child relationship handling of range-request nodes allows remote attackers to execute arbitrary code or cause denial of service via crafted web content.

MitigationUpgrade to Firefox 24.0+, Thunderbird 24.0+, SeaMonkey 2.21+, or respective ESR 17.0.9+ versions. This is a client-side vulnerability; the fix is applying vendor patches via software updates.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions

NVD · CPE data

FirefoxWeb browser

Affected:= 17.0= 17.0.1= 17.0.2= 17.0.3= 17.0.4= 17.0.5= 17.0.6= 17.0.7= 17.0.8<= 23.0.1= 19.0= 19.0.1

SeamonkeyApplication

Affected:<= 2.20= 2.0= 2.0.1= 2.0.2= 2.0.3= 2.0.4= 2.0.5= 2.0.6= 2.0.7= 2.0.8= 2.0.9= 2.0.10

ThunderbirdApplication

Affected:<= 17.0.9= 17.0= 17.0.1= 17.0.2= 17.0.3= 17.0.4= 17.0.5= 17.0.6= 17.0.7= 17.0.8

Thunderbird EsrApplication

Affected:= 17.0= 17.0.1= 17.0.2= 17.0.3= 17.0.4= 17.0.5= 17.0.6= 17.0.7= 17.0.8

CVSS breakdown

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?

dbcve checks

Work through these to decide whether this CVE applies to you.

Identify installed Mozilla product

Run 'firefox --version' for Firefox, 'thunderbird --version' for Thunderbird, or 'seamonkey --version' for SeaMonkey. On Windows, check the application's Help > About dialog.

Affected if Any of Firefox, Thunderbird, or SeaMonkey is installed
Check Firefox version against affected list

If Firefox is installed, note the exact version number (e.g., 17.0.5, 23.0.1, 19.0)

Affected if Version is 17.0, 17.0.1-17.0.8, 19.0, 19.0.1, or 23.0.1 (any version from 17.0 through 23.0.1 that is not 24.0 or higher)
Check Thunderbird version against affected list

If Thunderbird is installed, note the exact version number

Affected if Version is 17.0, 17.0.1-17.0.8, or 17.0.9 (any version from 17.0 through 17.0.9 that is not the patched 17.0.9 ESR)
Check SeaMonkey version against affected list

If SeaMonkey is installed, note the exact version number

Affected if Version is 2.0 through 2.20 inclusive, or 2.21 and below (any version below 2.21)

You are affected if any installed Mozilla product (Firefox, Thunderbird, or SeaMonkey) matches the version numbers listed in the affected ranges; the vulnerability exists in unpatched versions of these products.

Generated from the published advisory. Verify against your own configuration.

Remediation

dbcve · scoped

Upgrade available Upgrade to a release after 23.0.1

Interim mitigation

Upgrade to Firefox 24.0+, Thunderbird 24.0+, SeaMonkey 2.21+, or respective ESR 17.0.9+ versions. This is a client-side vulnerability; the fix is applying vendor patches via software updates.

Recommended fix High confidence

Firefox 24.0+, Firefox ESR 17.0.9+, Thunderbird 24.0+, Thunderbird ESR 17.0.9+, SeaMonkey 2.21+

Identify the currently installed version of Firefox, Thunderbird, SeaMonkey, or Thunderbird ESR
Back up important data (bookmarks, emails, settings)
Upgrade Firefox to version 24.0 or later
Upgrade Firefox ESR to version 17.0.9 or later
Upgrade Thunderbird to version 24.0 or later
Upgrade Thunderbird ESR to version 17.0.9 or later
Upgrade SeaMonkey to version 2.21 or later
Restart the application and verify the version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Firefox Scoped from the published advisory

Consultation2.0 h
Implementation2.0 h
Testing1.0 h
Review / QA1.0 h

6.0 hours of engineering $1,090

Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,744.

Scan for this in your stack

Free · runs locally

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References

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2013-1736 in production — separate from our analysis above.

Notes0 Guidelines

Know something about CVE-2013-1736?

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.

What this is

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.

What belongs here

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

At a glance

A fix existsUpgrade to after 23.0.1 or later

Severity 10.0 High

Exploit likelihood EPSS, next 30 days 5.4%

Affects: Firefox

Remediation

A high-priority fix

Fix this in Firefox 6 hrs · Low

Typical engagement from $1,090

Get a fix See the full breakdown ↓

A high-priority vulnerability. Send your environment and a specialist will scope CVE-2013-1736 and return a fixed quote and timeline.

You’ll deal with our team directly and deploy the reviewed fix to staging first — never straight to production.

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.

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.

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.

CVSS 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.

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.

Check your environment

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.

Scan for this in your stack

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Practitioner notes

No notes yet

Official description

Technical summary

Affected products & versions

CVSS breakdown

Am I affected?

Remediation

References