CVEvulnerability

CVE-2020-13974

7.8 HIGH Published 2020-06-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-06-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-190

Description

An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case.

Affected configurations

• linux linux kernel (< 4.4.227) • linux linux kernel (>= 4.5 < 4.9.227) • linux linux kernel (>= 4.10 < 4.14.184) • linux linux kernel (>= 4.15 < 4.19.128) • linux linux kernel (>= 4.20 < 5.4.46) • linux linux kernel (>= 5.5 < 5.6.18) • linux linux kernel (>= 5.7 < 5.7.2) • debian debian linux 9.0 • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 20.04

Related

Weakness · CWE (1)

  • CWE-190 Integer Overflow or Wraparound weakness

References