Use After Free Affecting kernel-debug-devel package, versions <0:4.18.0-240.el8
Threat Intelligence
EPSS
0.08% (35th
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-KERNELDEBUGDEVEL-3817231
- published 26 Jul 2021
- disclosed 30 Jan 2020
Introduced: 30 Jan 2020
CVE-2020-8648 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug-devel 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 kernel-debug-devel package and not the kernel-debug-devel 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 n_tty_receive_buf_common function in drivers/tty/n_tty.c.
References
- https://security.netapp.com/advisory/ntap-20200924-0004/
- https://access.redhat.com/security/cve/CVE-2020-8648
- https://www.debian.org/security/2020/dsa-4698
- https://bugzilla.kernel.org/show_bug.cgi?id=206361
- 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/msg00021.html
- https://usn.ubuntu.com/4342-1/
- https://usn.ubuntu.com/4344-1/
- https://usn.ubuntu.com/4345-1/
- https://usn.ubuntu.com/4346-1/
CVSS Scores
version 3.1