Use After Free Affecting kernel-rt-core package, versions <0:4.18.0-372.9.1.rt7.166.el8
Threat Intelligence
EPSS
0.04% (11th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTCORE-2429842
- published 18 Mar 2022
- disclosed 7 Mar 2022
Introduced: 7 Mar 2022
CVE-2022-1011 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-core to version 0:4.18.0-372.9.1.rt7.166.el8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-core package and not the kernel-rt-core package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.
References
- https://access.redhat.com/security/cve/CVE-2022-1011
- https://access.redhat.com/errata/RHSA-2022:1975
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BG4J46EMFPDD5QHYXDUI3PJCZQ7HQAZR/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C5AUUDGSDLGYU7SZSK4PFAN22NISQZBT/
- http://packetstormsecurity.com/files/166772/Linux-FUSE-Use-After-Free.html
- https://security.netapp.com/advisory/ntap-20220425-0002/
- https://bugzilla.redhat.com/show_bug.cgi?id=2064855
- https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git/commit/?h=for-next
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://www.debian.org/security/2022/dsa-5173
- https://www.oracle.com/security-alerts/cpujul2022.html
CVSS Scores
version 3.1