VULNERABILITY INTELLIGENCE
CVE-2020-28974
CVSS score5 MEDIUM
EPSS probability0.52%
CISA KEVNot currently listed
Published2020-11-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
Description
A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.
Weakness classification
- nvd@nist.gov: CWE-125
Primary references
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Release Notes, Vendor Advisory
- cve@mitre.org — Patch, Vendor Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Exploit, Mailing List, Third Party Advisory
- cve@mitre.org — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory