Integer Overflow or Wraparound Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-372.9.1.rt7.166.el8
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGKVM-1950238
- published 21 Oct 2021
- disclosed 22 Mar 2020
Introduced: 22 Mar 2020
CVE-2020-13974 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-debug-kvm to version 0:4.18.0-372.9.1.rt7.166.el8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case.
References
- https://access.redhat.com/security/cve/CVE-2020-13974
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dad0bf9ce93fa40b667eccd3306783f4db4b932b
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae
- https://lkml.org/lkml/2020/3/22/482
- https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html
- https://access.redhat.com/errata/RHSA-2022:1975
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
- https://usn.ubuntu.com/4427-1/
- https://usn.ubuntu.com/4439-1/
- https://usn.ubuntu.com/4440-1/
- https://usn.ubuntu.com/4483-1/
- https://usn.ubuntu.com/4485-1/
- https://www.oracle.com/security-alerts/cpujul2022.html