CVE-2020-28974

Medium

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.

Package Linux Kernel
Published 2020-11-20
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

5.0

out of 10
Medium
Attack Vector
Physical
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High
Vector string
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H

Weakness type

CWE-125

CVE-2020-28974 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

7 total
Showing 5 of 7 references View all on NVD

Frequently asked questions

  • What is CVE-2020-28974?

    CVE-2020-28974 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.0 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . CVE-2020-28974 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2020-28974?

    CVE-2020-28974 has a CVSS score of 5.0 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H .

  • Is there a patch available for CVE-2020-28974?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2020-28974 patch availability.

  • Is CVE-2020-28974 actively exploited?

    No. CVE-2020-28974 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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