Use After Free Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-513.5.1.rt7.307.el8_9
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGKVM-5497215
- published 4 May 2023
- disclosed 14 Jun 2022
Introduced: 14 Jun 2022
CVE-2023-2513 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-debug-kvm to version 0:4.18.0-513.5.1.rt7.307.el8_9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors.
References
- https://access.redhat.com/security/cve/CVE-2023-2513
- https://lore.kernel.org/all/20220616021358.2504451-1-libaokun1@huawei.com/
- https://bugzilla.redhat.com/show_bug.cgi?id=2193097
- https://github.com/torvalds/linux/commit/67d7d8ad99be
- https://lore.kernel.org/all/20220616021358.2504451-1-libaokun1%40huawei.com/