7.8

CVE-2020-13974

Exploit

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.

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version < 4.4.227
LinuxLinux Kernel Version >= 4.5 < 4.9.227
LinuxLinux Kernel Version >= 4.10 < 4.14.184
LinuxLinux Kernel Version >= 4.15 < 4.19.128
LinuxLinux Kernel Version >= 4.20 < 5.4.46
LinuxLinux Kernel Version >= 5.5 < 5.6.18
LinuxLinux Kernel Version >= 5.7 < 5.7.2
DebianDebian Linux Version9.0
CanonicalUbuntu Linux Version14.04 SwEditionesm
CanonicalUbuntu Linux Version16.04 SwEditionesm
CanonicalUbuntu Linux Version18.04 SwEditionlts
CanonicalUbuntu Linux Version20.04 SwEditionlts
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.06% 0.176
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.