Integer Underflow Affecting kernel-rt-debug-core package, versions <0:4.18.0-553.22.1.rt7.363.el8_10
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGCORE-7505654
- published 17 Jul 2024
- disclosed 16 Jul 2024
Introduced: 16 Jul 2024
CVE-2022-48804 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-debug-core to version 0:4.18.0-553.22.1.rt7.363.el8_10 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-core package and not the kernel-rt-debug-core package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
vt_ioctl: fix array_index_nospec in vt_setactivate
array_index_nospec ensures that an out-of-bounds value is set to zero on the transient path. Decreasing the value by one afterwards causes a transient integer underflow. vsa.console should be decreased first and then sanitized with array_index_nospec.
Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU Amsterdam.
References
- https://access.redhat.com/security/cve/CVE-2022-48804
- https://git.kernel.org/stable/c/170325aba4608bde3e7d21c9c19b7bc266ac0885
- https://git.kernel.org/stable/c/2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0
- https://git.kernel.org/stable/c/61cc70d9e8ef5b042d4ed87994d20100ec8896d9
- https://git.kernel.org/stable/c/6550bdf52846f85a2a3726a5aa0c7c4399f2fc02
- https://git.kernel.org/stable/c/778302ca09498b448620edd372dc908bebf80bdf
- https://git.kernel.org/stable/c/830c5aa302ec16b4ee641aec769462c37f802c90
- https://git.kernel.org/stable/c/ae3d57411562260ee3f4fd5e875f410002341104
- https://git.kernel.org/stable/c/ffe54289b02e9c732d6f04c8ebbe3b2d90d32118