Out-of-bounds Read Affecting kernel-rt-debug-modules package, versions <0:4.18.0-348.rt7.130.el8
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGMODULES-2126783
- published 26 Jul 2021
- disclosed 23 Jun 2021
How to fix?
Upgrade Centos:8 kernel-rt-debug-modules to version 0:4.18.0-348.rt7.130.el8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules package and not the kernel-rt-debug-modules package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.