CVE-2020-28974

CVSS V2 Medium 6.1 CVSS V3 Medium 5
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.
Overview
  • CVE ID
  • CVE-2020-28974
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-11-20T18:15:12
  • Last Modified Date
  • 2021-01-27T19:44:45
Weakness Enumerations
CWE URL
CWE-125 http://cwe.mitre.org/data/definitions/125.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.9.7
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:P/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.1
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 8.5
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
  • Attack Vector
  • PHYSICAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • HIGH
  • Base Score
  • 5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.3
  • Impact Score
  • 4.7
References
Reference URL Reference Tags
https://seclists.org/oss-sec/2020/q4/104 Exploit Mailing List Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7 Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c4e0dff2095c579b142d5a0693257f1c58b4804 Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2020/11/25/1 Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20210108-0003/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-28974
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28974
History
Created Old Value New Value Data Type Notes
2022-05-10 07:25:56 Added to TrackCVE
2022-12-05 17:09:34 2020-11-20T18:15Z 2020-11-20T18:15:12 CVE Published Date updated
2022-12-05 17:09:34 2021-01-27T19:44:45 CVE Modified Date updated
2022-12-05 17:09:34 Analyzed Vulnerability Status updated