VulnerabilityModified
CVE-2022-43680
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.
HIGH 7.5EPSS 2.44%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.44% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- libexpat project/libexpat · debian/debian linux · fedoraproject/fedora · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h410s firmware · netapp/h410c firmware · netapp/active iq unified manager · netapp/oncommand workflow automation · netapp/solidfire \& hci management node · netapp/hci compute node firmware
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2023/12/28/5Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2024/01/03/5Mailing List, Third Party Advisory
- https://github.com/libexpat/libexpat/issues/649Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/616Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/650Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00033.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202210-38Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221118-0007/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5266Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/12/28/5Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2024/01/03/5Mailing List, Third Party Advisory
- https://github.com/libexpat/libexpat/issues/649Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/616Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/650Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00033.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202210-38Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221118-0007/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5266Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.