Use-after-free vulnerability in the WebRTC implementation in Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, and SeaMonkey before
Noroxi assessment
Priority: Monitor (action score 31/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 4.1% (FIRST EPSS); higher than 90.6% of all records.
- No special conditions are required; it is repeatable.
- Fixed version: iceweasel (Debian:7) 31.4.0esr-1~deb7u1; firefox (Red Hat:enterprise_linux:5::client) 0:31.4.0-1.el5_11; firefox-debuginfo (Red Hat:enterprise_linux:5::client) 0:31.4.0-1.el5_11.
Low priority for now. Upgrade to iceweasel (Debian:7) 31.4.0esr-1~deb7u1; firefox (Red Hat:enterprise_linux:5::client) 0:31.4.0-1.el5_11; firefox-debuginfo (Red Hat:enterprise_linux:5::client) 0:31.4.0-1.el5_11 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Use-after-free vulnerability in the WebRTC implementation in Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, and SeaMonkey before 2.32 allows remote attackers to execute arbitrary code via crafted track data.
- Published
- Jan 14, 2015
- Updated
- Jun 16, 2026
- EPSS
- 4.2% · 91th percentile
- CWE
- —
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 4.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| mozilla | seamonkey | cpe:2.3:a:mozilla:seamonkey |
| mozilla | firefox | cpe:2.3:a:mozilla:firefox |
| mozilla | firefox esr | cpe:2.3:a:mozilla:firefox_esr |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- mozilla firefoxup to 34.0.5 inclusive
- mozilla firefox31.0
- mozilla firefox31.1.0
- mozilla firefox31.1.1
- mozilla firefox31.3.0
- mozilla firefox esr31.2
- mozilla seamonkeyup to 2.31 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:7 | iceweasel | before 31.4.0esr-1~deb7u1 | 31.4.0esr-1~deb7u1 |
| Red Hat:enterprise_linux:5::client | firefox | before 0:31.4.0-1.el5_11 | 0:31.4.0-1.el5_11 |
| Red Hat:enterprise_linux:5::client | firefox-debuginfo | before 0:31.4.0-1.el5_11 | 0:31.4.0-1.el5_11 |
| Red Hat:enterprise_linux:6::client | firefox | before 0:31.4.0-1.el6_6 | 0:31.4.0-1.el6_6 |
| Red Hat:enterprise_linux:6::client | firefox-debuginfo | before 0:31.4.0-1.el6_6 | 0:31.4.0-1.el6_6 |
| Red Hat:enterprise_linux:7::client | firefox | before 0:31.4.0-1.el7_0 | 0:31.4.0-1.el7_0 |
| Red Hat:enterprise_linux:7::client | firefox-debuginfo | before 0:31.4.0-1.el7_0 | 0:31.4.0-1.el7_0 |
| Red Hat:enterprise_linux:7::client | xulrunner | before 0:31.4.0-1.el7_0 | 0:31.4.0-1.el7_0 |
| Red Hat:enterprise_linux:7::client | xulrunner-debuginfo | before 0:31.4.0-1.el7_0 | 0:31.4.0-1.el7_0 |
| Red Hat:enterprise_linux:7::client | xulrunner-devel | before 0:31.4.0-1.el7_0 | 0:31.4.0-1.el7_0 |
Same product
mozilla: all recordsOther highest-scoring records for the same primary product.
- CVE-2011-2371Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaM63This week
- CVE-2013-1710The crypto.generateCRMFRequest function in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbi52Plan
- CVE-2013-5601Use-after-free vulnerability in the nsEventListenerManager::SetEventHandler function in Mozilla Firefox before 25.0, Firefox ESR 17.x before42Plan
- CVE-2013-5590Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 25.0, Firefox ESR 17.x before 17.0.10 and 24.x before 242Plan
- CVE-2013-1736The nsGfxScrollFrameInner::IsLTR function in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbi42Plan
- CVE-2013-1702Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 23.0 and SeaMonkey before 2.20 allow remote attackers t42Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:iceweasel | 31.4.0esr-1~deb7u1 · Debian:7 | Package registry (OSV) |
| red hat:firefox | 0:31.4.0-1.el5_11 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:firefox-debuginfo | 0:31.4.0-1.el5_11 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:xulrunner | 0:31.4.0-1.el7_0 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:xulrunner-debuginfo | 0:31.4.0-1.el7_0 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:xulrunner-devel | 0:31.4.0-1.el7_0 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- lists.opensuse.org/opensuse-security-announce/2015-01/msg00014.html
- lists.opensuse.org/opensuse-security-announce/2015-01/msg00032.html
- lists.opensuse.org/opensuse-security-announce/2015-01/msg00033.html
- lists.opensuse.org/opensuse-security-announce/2015-01/msg00036.html
- lists.opensuse.org/opensuse-security-announce/2015-02/msg00002.html
- rhn.redhat.com/errata/RHSA-2015-0046.html
- secunia.com/advisories/62237
- secunia.com/advisories/62242
- secunia.com/advisories/62250
- secunia.com/advisories/62253
- secunia.com/advisories/62273
- secunia.com/advisories/62293
- secunia.com/advisories/62313
- secunia.com/advisories/62316
- secunia.com/advisories/62418
- secunia.com/advisories/62446
- secunia.com/advisories/62790
- www.debian.org/security/2015/dsa-3127
- www.mozilla.org/security/announce/2014/mfsa2015-06.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.