High severity7.1NVD Advisory· Published Mar 23, 2022· Updated Jun 17, 2026
CVE-2021-4156
CVE-2021-4156
Description
An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a crash but could potentially leak memory information that could be used in further exploitation of other flaws.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
48cpe:2.3:a:libsndfile_project:libsndfile:1.1.10:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:libsndfile_project:libsndfile:1.1.10:*:*:*:*:*:*:*
- (no CPE)
- libsndfile/FLAC codec functionalitydescription
- osv-coords43 versionspkg:rpm/almalinux/libsndfilepkg:rpm/almalinux/libsndfile-develpkg:rpm/opensuse/libsndfile&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/libsndfile&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/libsndfile-progs&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/libsndfile&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/libsndfile&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/libsndfile&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP3pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP2pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/libsndfile&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/libsndfile&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/libsndfile&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/libsndfile&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/libsndfile&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/libsndfile&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/libsndfile&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/libsndfile&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 1.0.28-12.el8+ 42 more
- (no CPE)range: < 1.0.28-12.el8
- (no CPE)range: < 1.0.28-12.el8
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.31-3.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.20-2.19.18.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.20-2.19.18.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.28-5.15.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
- (no CPE)range: < 1.0.25-36.26.1
Patches
Vulnerability mechanics
References
7- github.com/libsndfile/libsndfile/pull/732/commits/4c30646abf7834e406f7e2429c70bc254e18beabnvdPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdExploitIssue TrackingThird Party Advisory
- github.com/libsndfile/libsndfile/issues/731nvdExploitIssue TrackingThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/06/msg00020.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/09/msg00036.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/12/msg00013.htmlnvd
- security.gentoo.org/glsa/202309-11nvd
News mentions
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