CVE Vulnerability

CVE-2020-13974

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.

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae Patch Vendor Advisory
https://lkml.org/lkml/2020/3/22/482 Exploit Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html Mailing List Third Party Advisory
https://usn.ubuntu.com/4427-1/ Third Party Advisory
https://usn.ubuntu.com/4439-1/ Third Party Advisory
https://usn.ubuntu.com/4440-1/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html Mailing List Third Party Advisory
https://usn.ubuntu.com/4483-1/ Third Party Advisory
https://usn.ubuntu.com/4485-1/ Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dad0bf9ce93fa40b667eccd3306783f4db4b932b Vendor Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Information

Published : 2020-06-09 05:15

Updated : 2023-02-24 06:42

NVD link : CVE-2020-13974

Mitre link : CVE-2020-13974

Products Affected

Canonical

Ubuntu Linux

CWE
CWE-190