Use After Free Affecting perf package, versions <0:4.18.0-240.el8
Threat Intelligence
EPSS
0.06% (27th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-RHEL8-PERF-3819006
- published 26 Jul 2021
- disclosed 30 Jan 2020
Introduced: 30 Jan 2020
CVE-2020-8649 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-240.el8 or higher.
This issue was patched in RHSA-2020:4431.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.
References
- https://access.redhat.com/security/cve/CVE-2020-8649
- https://www.debian.org/security/2020/dsa-4698
- https://bugzilla.kernel.org/show_bug.cgi?id=206357
- 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-2020:4431
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html
CVSS Scores
version 3.1