High severity7.5NVD Advisory· Published Oct 24, 2022· Updated Jun 17, 2026
CVE-2022-43680
CVE-2022-43680
Description
In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
49(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=2.4.9
- osv-coords47 versionspkg:apk/chainguard/expatpkg:apk/chainguard/expat-devpkg:apk/chainguard/expat-docpkg:apk/chainguard/libexpat1pkg:apk/wolfi/expatpkg:apk/wolfi/expat-devpkg:apk/wolfi/expat-docpkg:apk/wolfi/libexpat1pkg:rpm/almalinux/expatpkg:rpm/almalinux/expat-develpkg:rpm/opensuse/expat&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/expat&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/expat&distro=openSUSE%20Leap%20Micro%205.2pkg:rpm/opensuse/expat&distro=openSUSE%20Tumbleweedpkg:rpm/suse/expat&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/expat&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/expat&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/expat&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/expat&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/expat&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/expat&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 0+ 46 more
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 2.2.5-10.el8_7.1
- (no CPE)range: < 2.2.5-10.el8_7.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.4.4-150400.3.12.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.5.0-1.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.4.4-150400.3.12.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.4.4-150400.3.12.1
- (no CPE)range: < 2.1.0-21.28.1
- (no CPE)range: < 2.1.0-21.28.1
- (no CPE)range: < 2.1.0-21.28.1
- (no CPE)range: < 2.1.0-21.28.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.1.0-21.28.1
- (no CPE)range: < 2.1.0-21.28.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.1.0-21.28.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.2.5-150000.3.25.1
- (no CPE)range: < 2.1.0-21.28.1
- (no CPE)range: < 2.1.0-21.28.1
Patches
Vulnerability mechanics
References
15- github.com/libexpat/libexpat/issues/649nvdExploitIssue TrackingPatchThird Party Advisory
- github.com/libexpat/libexpat/pull/616nvdExploitIssue TrackingPatchThird Party Advisory
- github.com/libexpat/libexpat/pull/650nvdExploitIssue TrackingPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2023/12/28/5nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2024/01/03/5nvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/10/msg00033.htmlnvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/nvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202210-38nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20221118-0007/nvdThird Party Advisory
- www.debian.org/security/2022/dsa-5266nvdThird Party Advisory
News mentions
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