Use After Free Affecting kernel-bootwrapper package, versions *
Threat Intelligence
EPSS
0.05% (18th
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-RHEL7-KERNELBOOTWRAPPER-1398925
- published 26 Jul 2021
- disclosed 3 Nov 2020
Introduced: 3 Nov 2020
CVE-2020-27820 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-bootwrapper.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).
References
- https://access.redhat.com/security/cve/CVE-2020-27820
- https://access.redhat.com/errata/RHSA-2022:1975
- https://access.redhat.com/errata/RHSA-2022:1988
- https://lore.kernel.org/dri-devel/20201103194912.184413-2-jcline@redhat.com/
- https://lore.kernel.org/dri-devel/20201103194912.184413-3-jcline@redhat.com/
- https://lore.kernel.org/dri-devel/20201103194912.184413-4-jcline@redhat.com/
- https://bugzilla.redhat.com/show_bug.cgi?id=1901726
- https://lore.kernel.org/dri-devel/20201103194912.184413-2-jcline%40redhat.com/
- https://lore.kernel.org/dri-devel/20201103194912.184413-3-jcline%40redhat.com/
- https://lore.kernel.org/dri-devel/20201103194912.184413-4-jcline%40redhat.com/
- https://www.oracle.com/security-alerts/cpujul2022.html
CVSS Scores
version 3.1