CVE-2021-20292: Use After Free
First published: Tue Mar 16 2021(Updated: )
Last updated 24 March 2025
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/Kernel | <5.9 | 5.9 |
| Linux Kernel | >=3.3<4.9.298 | |
| Linux Kernel | >=4.10<4.14.263 | |
| Linux Kernel | >=4.15<4.19.140 | |
| Linux Kernel | >=4.20<5.4.59 | |
| Linux Kernel | >=5.5<5.7.16 | |
| Linux Kernel | >=5.8<5.8.2 | |
| Red Hat Fedora | =33 | |
| Red Hat Enterprise Linux | =6.0 | |
| Red Hat Enterprise Linux | =7.0 | |
| Debian Linux | =9.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1939686
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://launchpad.net/bugs/cve/CVE-2021-20292
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1939687
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5de5b6ecf97a021f29403aa272cb4e03318ef586
- https://seclists.org/oss-sec/2020/q3/127
- https://git.kernel.org/linus/5de5b6ecf97a021f29403aa272cb4e03318ef586
- https://security-tracker.debian.org/tracker/CVE-2021-20292
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20292
- https://nvd.nist.gov/vuln/detail/CVE-2021-20292
- https://ubuntu.com/security/CVE-2021-20292
Frequently Asked Questions
What is the severity of CVE-2021-20292?
CVE-2021-20292 is considered a high-severity vulnerability due to its potential for local privilege escalation.
How do I fix CVE-2021-20292?
To fix CVE-2021-20292, update your kernel to a version that is 5.10.223-1 or later.
Which software is affected by CVE-2021-20292?
CVE-2021-20292 affects various versions of the Linux Kernel and associated distributions like Red Hat and Debian.
Can CVE-2021-20292 be exploited remotely?
No, CVE-2021-20292 requires local access to exploit, making it a local privilege escalation vulnerability.
What specific file contains the vulnerability CVE-2021-20292?
The CVE-2021-20292 vulnerability is located in drivers/gpu/drm/nouveau/nouveau_sgdma.c in the Nouveau DRM subsystem.
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