VulnerabilityModified
CVE-2022-40674
libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.
HIGH 8.1EPSS 2.21%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.21% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- libexpat project/libexpat · debian/debian linux · fedoraproject/fedora
- Source
- cve@mitre.org
References
- https://github.com/libexpat/libexpat/pull/629Issue Tracking, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/640Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00029.htmlIssue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSVZN3IJ6OCPSJL7AEX3ZHSHAHFOGESK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J2IGJNHFV53PYST7VQV3T4NHVYAMXA36/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LQB6FJAM5YQ35SF5B2MN25Y2FX56EOEZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WE2ZKEPGFCZ7R6DRVH3K6RBJPT42ZBEG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGBVQQ47URGJAZWHCISHDWF6QBTV2LE/
- https://security.gentoo.org/glsa/202209-24Third Party Advisory
- https://security.gentoo.org/glsa/202211-06Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221028-0008/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5236Third Party Advisory
- https://github.com/libexpat/libexpat/pull/629Issue Tracking, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/640Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00029.htmlIssue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSVZN3IJ6OCPSJL7AEX3ZHSHAHFOGESK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J2IGJNHFV53PYST7VQV3T4NHVYAMXA36/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LQB6FJAM5YQ35SF5B2MN25Y2FX56EOEZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WE2ZKEPGFCZ7R6DRVH3K6RBJPT42ZBEG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGBVQQ47URGJAZWHCISHDWF6QBTV2LE/
- https://security.gentoo.org/glsa/202209-24Third Party Advisory
- https://security.gentoo.org/glsa/202211-06Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221028-0008/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5236Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.