CVE-2020-25639

Advisory lineage Upstream: 0 Downstream: 21
Modified
Published: 04 Mar 2021, 21:56
Last modified:04 Aug 2024, 15:40

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
4.9 MEDIUM
v2.0 (nvd)
EPSS Score
0.12% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

04 Mar 2021, 21:56
Published
Vulnerability first disclosed
04 Aug 2024, 15:40
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.12%• Percentile: 31%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • fedoraproject•fedora

    32 | 33

  • linux•linux_kernel

    ≤ 5.11.2

  • redhat•enterprise_linux

    5.0 | 6.0 | 7.0 | 8.0

  • redhat•messaging_realtime_grid

    2.0

  • redhat•openshift_container_platform

    4.4 | 4.5 | 4.6

References (3)