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5.5
CVSSv3

CVE-2021-44879

Published: 14/02/2022 Updated: 11/01/2024
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
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Vulnerability Summary

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

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Vendor Advisories

Ubuntu Security Notice: USN-5383-1: Linux kernel vulnerabilities
Several security issues were fixed in the Linux kernel ...
Ubuntu Security Notice: USN-5302-1: Linux kernel (OEM) vulnerabilities
Several security issues were fixed in the Linux kernel ...
Red Hat: CVE-2021-44879
In gc_data_segment in fs/f2fs/gcc in the Linux kernel before 5163, special files are not considered, leading to a move_data_page NULL pointer dereference ...
Arch Linux Issues:
In gc_data_segment in fs/f2fs/gcc in the Linux kernel before 5163, special files are not considered, leading to a move_data_page NULL pointer dereference ...

References

CWE-476https://bugzilla.kernel.org/show_bug.cgi?id=215231https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9056d6489f5a41cfbb67f719d2c0ce61ead72d9fhttps://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao%40kernel.org/T/https://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlhttps://lists.debian.org/debian-lts-announce/2024/01/msg00005.htmlhttps://nvd.nist.govhttps://ubuntu.com/security/notices/USN-5383-1
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-3581reflected XSSCVE-2024-26925CVE-2024-27956LFICVE-2024-3607CVE-2024-3107CVE-2024-3295SQL
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