Information Exposure Affecting kernel-rt-debug-core package, versions <0:4.18.0-240.rt7.54.el8
Threat Intelligence
EPSS
0.05% (16th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGCORE-2076423
- published 26 Jul 2021
- disclosed 30 Jan 2020
Introduced: 30 Jan 2020
CVE-2020-8647 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-debug-core to version 0:4.18.0-240.rt7.54.el8 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.
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in drivers/tty/vt/vt.c.
References
- https://access.redhat.com/security/cve/CVE-2020-8647
- https://www.debian.org/security/2020/dsa-4698
- https://bugzilla.kernel.org/show_bug.cgi?id=206359
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://access.redhat.com/errata/RHSA-2020:4609
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html
CVSS Scores
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