Race Condition Affecting kernel-rt-debug-modules-extra package, versions <0:5.14.0-284.11.1.rt14.296.el9_2
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Test your applications- Snyk ID SNYK-RHEL9-KERNELRTDEBUGMODULESEXTRA-5583241
- published 4 Jun 2022
- disclosed 9 May 2022
How to fix?
Upgrade RHEL:9 kernel-rt-debug-modules-extra to version 0:5.14.0-284.11.1.rt14.296.el9_2 or higher.
This issue was patched in RHSA-2023:2148.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-extra package and not the kernel-rt-debug-modules-extra package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.