CVE-2021-4148

CVSS V2 Medium 4.9 CVSS V3 Medium 5.5
Description
A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of service (DOS) problem.
Overview
  • CVE ID
  • CVE-2021-4148
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-03-23T20:15:09
  • Last Modified Date
  • 2022-03-30T13:59:44
Weakness Enumerations
CWE URL
CWE-354 http://cwe.mitre.org/data/definitions/354.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.14.16
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://lkml.org/lkml/2021/9/12/323 Exploit Mailing List Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2026487 Issue Tracking Third Party Advisory
https://lkml.org/lkml/2021/9/17/1037 Exploit Mailing List Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-4148
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4148
History
Created Old Value New Value Data Type Notes
2022-04-04 00:40:24 Added to TrackCVE
2022-12-06 13:08:00 2022-03-23T20:15Z 2022-03-23T20:15:09 CVE Published Date updated
2022-12-06 13:08:00 2022-03-30T13:59:44 CVE Modified Date updated
2022-12-06 13:08:00 Analyzed Vulnerability Status updated