A heap buffer overflow vulnerability in msadpcm_decode_block of libsndfile 1.0.30 allows…
Priority MEDIUM 44CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 13 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
A heap buffer overflow vulnerability in msadpcm_decode_block of libsndfile 1.0.30 allows attackers to execute arbitrary code via a crafted WAV file.
Why it matters now
EPSS 0.03116 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 4 advisoriesRed Hat: 13 fixed, 1 without a fix
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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libsndfile_project:libsndfile:1.0.30:*:*:*:*:*:*:* | 1.0.30 | Vulnerable | Libsndfile Project |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 33 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:libsndfile_project:libsndfile:1.0.30:*:*:*:*:*:*:* Versions 1.0.30 Vulnerable ·Libsndfile Project
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
Red Hat 4 advisories
- RHSA-2021:3295 Released 2021-08-30 · Red Hat rating Importantlibsndfile security update
- Red Hat Enterprise Linux Client (v. 7) libsndfile-1.0.25-12.el7_9.1
- Red Hat Enterprise Linux Client Optional (v. 7) libsndfile-devel-1.0.25-12.el7_9.1, libsndfile-utils-1.0.25-12.el7_9.1
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libsndfile-devel-1.0.25-12.el7_9.1, libsndfile-utils-1.0.25-12.el7_9.1
- Red Hat Enterprise Linux Server (v. 7) libsndfile-1.0.25-12.el7_9.1, libsndfile-1.0.25-12.el7_9.1.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) libsndfile-devel-1.0.25-12.el7_9.1, libsndfile-devel-1.0.25-12.el7_9.1.ppc, libsndfile-utils-1.0.25-12.el7_9.1
- Red Hat Enterprise Linux Workstation (v. 7) libsndfile-1.0.25-12.el7_9.1
- Red Hat Enterprise Linux Workstation Optional (v. 7) libsndfile-devel-1.0.25-12.el7_9.1, libsndfile-utils-1.0.25-12.el7_9.1
- RHSA-2021:3298 Released 2021-08-30 · Red Hat rating Importantlibsndfile security update
- Red Hat CodeReady Linux Builder EUS (v. 8.2) libsndfile-devel-1.0.28-10.el8_2.1
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) libsndfile-1.0.28-10.el8_2.1
- RHSA-2021:3297 Released 2021-08-30 · Red Hat rating Importantlibsndfile security update
- Red Hat CodeReady Linux Builder EUS (v. 8.1) libsndfile-devel-1.0.28-8.el8_1.1
- Red Hat Enterprise Linux AppStream EUS (v. 8.1) libsndfile-1.0.28-8.el8_1.1
Show 1 more Red Hat advisories
- RHSA-2021:3253 Released 2021-08-24 · Red Hat rating Importantlibsndfile security update
- Red Hat CodeReady Linux Builder (v. 8) libsndfile-devel-1.0.28-10.el8_4.1
- Red Hat Enterprise Linux AppStream (v. 8) libsndfile-1.0.28-10.el8_4.1
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2021:3253 |
| Red Hat CodeReady Linux Builder EUS (v. 8.1) | Fixed | RHSA-2021:3297 |
| Red Hat CodeReady Linux Builder EUS (v. 8.2) | Fixed | RHSA-2021:3298 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:3253 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.1) | Fixed | RHSA-2021:3297 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.2) | Fixed | RHSA-2021:3298 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2021:3295 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2021:3295 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2021:3295 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2021:3295 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2021:3295 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2021:3295 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2021:3295 |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3246
- 2026-10-03 Alias added: GHSA-p3g4-4phf-g392
References
Sources
- CVE-2021-3246 · CVE Program
- CVE-2021-3246 · NVD
- FIRST EPSS
- GHSA-p3g4-4phf-g392 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-3246 · Red Hat security data · CC BY 4.0
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