What’s Vulnerable › Vulnerabilities
CVE-2021-3246
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-07-20 · updated 2026-06-17
- Weakness: CWE-787
Description
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.
Affected products
- Debian Linux: 9.0, 10.0
- Fedoraproject Fedora: 33, 34
- Flexera Software LLC libsndfile: 1.0.30
References
- https://github.com/libsndfile/libsndfile/issues/687
- https://lists.debian.org/debian-lts-announce/2021/07/msg00024.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLUDCEMMPRA3IYYYHVZUOUZXI65FU37V/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T7LNW4AVDVL3BU3N3KGVFLTYFASBVCIF/
- https://security.gentoo.org/glsa/202309-11
- https://www.debian.org/security/2021/dsa-4947
- https://github.com/libsndfile/libsndfile/issues/687
- https://lists.debian.org/debian-lts-announce/2021/07/msg00024.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLUDCEMMPRA3IYYYHVZUOUZXI65FU37V/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T7LNW4AVDVL3BU3N3KGVFLTYFASBVCIF/
- https://security.gentoo.org/glsa/202309-11
- https://www.debian.org/security/2021/dsa-4947
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