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.
Published 2021-03-04 22:15:13
Updated 2021-03-10 20:47:31
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Threat overview for CVE-2020-25639

Top countries where our scanners detected CVE-2020-25639
Top open port discovered on systems with this issue 53
IPs affected by CVE-2020-25639 836,209
Threat actors abusing to this issue? Yes
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Exploit prediction scoring system (EPSS) score for CVE-2020-25639

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-25639

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.9
MEDIUM AV:L/AC:L/Au:N/C:N/I:N/A:C
3.9
6.9
NIST
4.4
MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
0.8
3.6
NIST

CWE ids for CVE-2020-25639

  • A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
    Assigned by: secalert@redhat.com (Primary)

References for CVE-2020-25639

Products affected by CVE-2020-25639

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