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 a 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. 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?

No patch is currently available for CVE-2020-28974. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2020-28974 actively exploited?

CVE-2020-28974 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/125.html

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

The following references provide additional information about CVE-2020-28974 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Openwall
http://www.openwall.com/lists/oss-security/2020/11/25/1

Mailing List Third Party Advisory
Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7

Release Notes Vendor Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html

Third Party Advisory
Seclists
https://seclists.org/oss-sec/2020/q4/104

Exploit Mailing List Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20210108-0003/

Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c4e0dff2095c579b142d5a0693257f1c58b4804
Patch

Details

CVE ID CVE-2020-28974

Severity Medium

CVSS score 5.0 / 10

CVSS version 3.1

Published 2020-11-20

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

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?

No patch is currently available for CVE-2020-28974. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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.
What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. View CWE-125 on MITRE CWE →