Use After Free Affecting kernel-tools package, versions <0:4.18.0-477.36.1.el8_8
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Test your applications- Snyk ID SNYK-RHEL8-KERNELTOOLS-6094809
- published 29 Nov 2023
- disclosed 2 Oct 2022
Introduced: 2 Oct 2022
CVE-2023-1192 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-tools to version 0:4.18.0-477.36.1.el8_8 or higher.
This issue was patched in RHSA-2023:7539.
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.
A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a denial of service.
References
- https://access.redhat.com/security/cve/CVE-2023-1192
- https://bugzilla.redhat.com/show_bug.cgi?id=2154178
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=98bea253aa28ad8be2ce565a9ca21beb4a9419e5
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d527f51331cace562393a8038d870b3e9916686f