VulnerabilityModified

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 8.8EPSS 3.29%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 3.1: 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 3.29% probability · 88th percentile
CISA KEV: Not listed
Weakness: CWE-787
Affected: libsndfile project/libsndfile · fedoraproject/fedora · debian/debian linux
Source: cve@mitre.org

References

https://github.com/libsndfile/libsndfile/issues/687Exploit, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00024.htmlMailing List, Third Party Advisory
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-4947Third Party Advisory
https://github.com/libsndfile/libsndfile/issues/687Exploit, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00024.htmlMailing List, Third Party Advisory
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-4947Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.