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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2323-1 linux-4.19 new package
EUVD EUVD EUVD-2020-6145 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.
Ubuntu USN Ubuntu USN USN-4427-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4439-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4440-1 linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4483-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4485-1 Linux kernel vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00048}

epss

{'score': 0.00056}


Sat, 12 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00049}

epss

{'score': 0.00048}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T12:32:14.647Z

Reserved: 2020-06-09T00:00:00.000Z

Link: CVE-2020-13974

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-06-09T05:15:10.787

Modified: 2024-11-21T05:02:16.510

Link: CVE-2020-13974

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-03-22T00:00:00Z

Links: CVE-2020-13974 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses