CVE Vulnerability

CVE-2021-44879

In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.kernel.org/show_bug.cgi?id=215231 Exploit Issue Tracking
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3 Mailing List Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9056d6489f5a41cfbb67f719d2c0ce61ead72d9f Mailing List Patch
https://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao@kernel.org/T/ Mailing List Patch
Configurations

Configuration 1

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

Published : 2022-02-14 12:15

Updated : 2022-02-22 06:26

NVD link : CVE-2021-44879

Mitre link : CVE-2021-44879

Products Affected
No products.
CWE
CWE-476