Incorrect Conversion between Numeric Types Affecting kernel-rt-modules-extra package, versions <0:4.18.0-425.3.1.rt7.213.el8
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTMODULESEXTRA-2972394
- published 4 Aug 2022
- disclosed 15 Apr 2022
Introduced: 15 Apr 2022
CVE-2022-2639 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-modules-extra to version 0:4.18.0-425.3.1.rt7.213.el8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.