CVE-2020-14331

Advisory lineage Upstream: 0 Downstream: 49
Modified
Published: 15 Sept 2020, 18:51
Last modified:04 Aug 2024, 12:39

Vulnerability Summary

Overall Risk (default)
medium
39/100
CVSS Score
7.2 HIGH
v2.0 (nvd)
EPSS Score
0.03% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

15 Sept 2020, 18:51
Published
Vulnerability first disclosed
04 Aug 2024, 12:39
Last Modified
Vulnerability information updated

Description

A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.6CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.03%• Percentile: 10%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

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

Affected Systems

  • linux•linux_kernel

    ≤ 5.7.19 | 5.8.0:rc1 | 5.8.0:rc2 | 5.8.0:rc3 | 5.8.0:rc4 | 5.8.0:rc5 | 5.8.0:rc6

  • redhat•enterprise_linux

    7.0 | 8.0

References (6)