CVE-2021-3246: 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

High severity · published Jul 20, 2021

CVE-2021-3246

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

8.8

CVSS

3.1%

EPSS

On KEV

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

Required

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)3.1% · higher than 88% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Debian Linux · Debian

9.0; 10.0 · source: NVD

Fedora · Fedoraproject

33; 34 · source: NVD

Libsndfile · Libsndfile Project

1.0.30 · source: NVD

Affected product

Debian Linux

Debian

All Debian Linux CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-3246

CVE.org

https://www.cve.org/CVERecord?id=CVE-2021-3246

Exploit

https://github.com/libsndfile/libsndfile/issues/687

Mailing List

https://lists.debian.org/debian-lts-announce/2021/07/msg00024.html

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLUDCEMMPRA3IYYYHVZUOUZXI65FU37V/

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T7LNW4AVDVL3BU3N3KGVFLTYFASBVCIF/

security.gentoo.org

https://security.gentoo.org/glsa/202309-11

Third Party Advisory

https://www.debian.org/security/2021/dsa-4947