CVE-2021-4148

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-4148
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.9 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2026487 Issue Tracking Third Party Advisory
https://lkml.org/lkml/2021/9/12/323 Exploit Mailing List Patch Third Party Advisory
https://lkml.org/lkml/2021/9/17/1037 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/2021/9/12/323 Exploit Mailing List Patch Third Party Advisory
https://lkml.org/lkml/2021/9/17/1037 Exploit Mailing List Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
History

21 Nov 2024, 06:37

Type Values Removed Values Added
References () https://bugzilla.redhat.com/show_bug.cgi?id=2026487 - Issue Tracking, Third Party Advisory () https://bugzilla.redhat.com/show_bug.cgi?id=2026487 - Issue Tracking, Third Party Advisory
References () https://lkml.org/lkml/2021/9/12/323 - Exploit, Mailing List, Patch, Third Party Advisory () https://lkml.org/lkml/2021/9/12/323 - Exploit, Mailing List, Patch, Third Party Advisory
References () https://lkml.org/lkml/2021/9/17/1037 - Exploit, Mailing List, Patch, Third Party Advisory () https://lkml.org/lkml/2021/9/17/1037 - Exploit, Mailing List, Patch, Third Party Advisory

30 Mar 2022, 13:59

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 4.9
v3 : 5.5
CPE cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-354
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2026487 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2026487 - Issue Tracking, Third Party Advisory
References (MISC) https://lkml.org/lkml/2021/9/17/1037 - (MISC) https://lkml.org/lkml/2021/9/17/1037 - Exploit, Mailing List, Patch, Third Party Advisory
References (MISC) https://lkml.org/lkml/2021/9/12/323 - (MISC) https://lkml.org/lkml/2021/9/12/323 - Exploit, Mailing List, Patch, Third Party Advisory

23 Mar 2022, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-03-23 20:15

Updated : 2024-11-21 06:37

NVD link : CVE-2021-4148

Mitre link : CVE-2021-4148

CVE.ORG link : CVE-2021-4148

JSON object : View

Products Affected

linux

  • linux_kernel

fedoraproject

  • fedora
CWE
CWE-354

Improper Validation of Integrity Check Value