The mozilla::AudioSink function in Mozilla Firefox before 40.0 and Firefox ESR 38.x…
Priority MEDIUM 40CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
The mozilla::AudioSink function in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 mishandles inconsistent sample formats within MP3 audio data, which allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via a malformed file.
Why it matters now
EPSS 0.04229 91st percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | up to 39.0.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:* | 38.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:* | 38.0.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:* | 38.0.5 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:* | 38.1.0 | Vulnerable | Mozilla |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* | 15.04 | Vulnerable | Canonical |
| cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* | 13.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* | 13.2 | Vulnerable | openSUSE |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions up to 39.0.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:* Versions 38.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:* Versions 38.0.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:* Versions 38.0.5 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:* Versions 38.1.0 Vulnerable ·Mozilla
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* Versions 15.04 Vulnerable ·Canonical
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* Versions 13.2 Vulnerable ·openSUSE
Remediation
Red Hat 1 advisory
- RHSA-2015:1586 Released 2015-08-11 · Red Hat rating Criticalfirefox security update
- Red Hat Enterprise Linux (v. 5 server) firefox-38.2.0-4.el5_11, firefox-38.2.0-4.el5_11.i386
- Red Hat Enterprise Linux Client (v. 7) firefox-38.2.0-4.el7_1
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-38.2.0-4.el7_1
- Red Hat Enterprise Linux Desktop (v. 5 client) firefox-38.2.0-4.el5_11, firefox-38.2.0-4.el5_11.i386
- Red Hat Enterprise Linux Desktop (v. 6) firefox-38.2.0-4.el6_7
- Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-38.2.0-4.el6_7
- Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-38.2.0-4.el6_7
- Red Hat Enterprise Linux Server (v. 6) firefox-38.2.0-4.el6_7
- Red Hat Enterprise Linux Server (v. 7) firefox-38.2.0-4.ael7b_1, firefox-38.2.0-4.el7_1
- Red Hat Enterprise Linux Server Optional (v. 6) firefox-38.2.0-4.el6_7, firefox-38.2.0-4.el6_7.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-38.2.0-4.el7_1, firefox-38.2.0-4.el7_1.ppc
- Red Hat Enterprise Linux Workstation (v. 6) firefox-38.2.0-4.el6_7
- Red Hat Enterprise Linux Workstation (v. 7) firefox-38.2.0-4.el7_1
- Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-38.2.0-4.el6_7
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-38.2.0-4.el7_1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2015:1586 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2015:1586 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2015-4475
- 2026-10-03 Alias added: GHSA-qrvx-fg3g-ff4r
References
Advisory 13
Sources
- CVE-2015-4475 · CVE Program
- CVE-2015-4475 · NVD
- FIRST EPSS
- GHSA-qrvx-fg3g-ff4r · GitHub Advisory Database · CC BY 4.0
- CVE-2015-4475 · Red Hat security data · CC BY 4.0
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