CVE-2021-3246

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.20% Top 25%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/libsndfile/libsndfile/issues/687 patch third party advisory exploit
https://lists.debian.org/debian-lts-announce/2021/07/msg00024.html third party advisory mailing list
https://www.debian.org/security/2021/dsa-4947 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T7LNW4AVDVL3BU3N3KGVFLTYFASBVCIF/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLUDCEMMPRA3IYYYHVZUOUZXI65FU37V/ vendor advisory
https://security.gentoo.org/glsa/202309-11 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3246?
CVE-2021-3246 has been scored as a high severity vulnerability.
How to fix CVE-2021-3246?
To fix CVE-2021-3246, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3246 being actively exploited in the wild?
It is possible that CVE-2021-3246 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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