CVE-2019-3832 — It was discovered the fix for CVE-2018-19758 (libsndfile) was not complete and s

It was discovered the fix for CVE-2018-19758 (libsndfile) was not complete and still allows a read beyond the limits of a buffer in wav_write_header() function in wav.c. A local attacker may use this flaw to make the application crash.

01What is this vulnerability?

It was discovered the fix for CVE-2018-19758 (libsndfile) was not complete and still allows a read beyond the limits of a buffer in wav_write_header() function in wav.c. A local attacker may use this flaw to make the application crash.

02Affected products

Vendor	Product	Versions
[UNKNOWN]	libsndfile	NA

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2019-03-20T20:00:27.000Z
• Last modified: 2024-08-04T19:19:18.550Z

09References

• bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3832
• github.com — https://github.com/erikd/libsndfile/issues/456
• github.com — https://github.com/erikd/libsndfile/pull/460
• usn.ubuntu.com — https://usn.ubuntu.com/4013-1/
• security.gentoo.org — https://security.gentoo.org/glsa/202007-65
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/10/msg00030.html