CVE-2020-28974

Advisory lineage Upstream: 0 Downstream: 31
Modified
Published: 20 Nov 2020, 17:49
Last modified:04 Aug 2024, 16:48

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
6.1 MEDIUM
v2.0 (nvd)
EPSS Score
0.06% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

20 Nov 2020, 17:49
Published
Vulnerability first disclosed
04 Aug 2024, 16:48
Last Modified
Vulnerability information updated

Description

A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
  • v2.0•MEDIUM•Score: 6.1AV:L/AC:L/Au:N/C:P/I:P/A:C

EPSS Trends

Current EPSS score: 0.06%• Percentile: 19%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•debian_linux

    9.0

  • linux•linux_kernel

    < 5.9.7

References (7)