Cyber Resilience

CVE-2020-25639

MediumPublic PoC

Published: 04 March 2021

Published
04 March 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0012 31.2th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-25639 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 4.4 (Medium).

Operationally, ranked at the 31.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

linux
linux kernel
≤ 5.11.2
fedoraproject
fedora
32, 33
redhat
openshift container platform
4.4, 4.5, 4.6
redhat
enterprise linux
5.0, 6.0, 7.0, 8.0
redhat
messaging realtime grid
2.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References