Use After Free Affecting kernel-tools package, versions <0:4.18.0-305.57.1.el8_4
Threat Intelligence
EPSS
0.19% (58th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-RHEL8-KERNELTOOLS-4193603
- published 6 Jul 2022
- disclosed 31 May 2022
Introduced: 31 May 2022
CVE-2022-32250 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-tools to version 0:4.18.0-305.57.1.el8_4 or higher.
This issue was patched in RHSA-2022:5626.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.
References
- https://access.redhat.com/security/cve/CVE-2022-32250
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L/
- http://www.openwall.com/lists/oss-security/2022/06/03/1
- http://www.openwall.com/lists/oss-security/2022/06/04/1
- http://www.openwall.com/lists/oss-security/2022/06/20/1
- http://www.openwall.com/lists/oss-security/2022/07/03/5
- http://www.openwall.com/lists/oss-security/2022/07/03/6
- http://www.openwall.com/lists/oss-security/2022/08/25/1
- http://www.openwall.com/lists/oss-security/2022/09/02/9
- https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/
- https://bugzilla.redhat.com/show_bug.cgi?id=2092427
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486cedd
- https://github.com/theori-io/CVE-2022-32250-exploit
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L/
- https://security.netapp.com/advisory/ntap-20220715-0005/
- https://www.debian.org/security/2022/dsa-5161
- https://www.debian.org/security/2022/dsa-5173
- https://www.openwall.com/lists/oss-security/2022/05/31/1
CVSS Scores
version 3.1