CVE-2020-14331

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 v3.1

6.6 MEDIUMCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

0.56% chance of exploitation in the next 30 days, 45th percentile

Published

2020-09-15

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://www.openwall.com/lists/oss-security/2020/07/28/2

References

• CVE Record
• NVD entry

Related

• CVE-2020-14321
• CVE-2020-14343
• CVE-2020-14315
• CVE-2020-14354
• CVE-2020-14295
• CVE-2020-14356