Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2024-53234

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
27/12/2024
Last modified:
03/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> erofs: handle NONHEAD !delta[1] lclusters gracefully<br /> <br /> syzbot reported a WARNING in iomap_iter_done:<br /> iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80<br /> ioctl_fiemap fs/ioctl.c:220 [inline]<br /> <br /> Generally, NONHEAD lclusters won&amp;#39;t have delta[1]==0, except for crafted<br /> images and filesystems created by pre-1.0 mkfs versions.<br /> <br /> Previously, it would immediately bail out if delta[1]==0, which led to<br /> inadequate decompressed lengths (thus FIEMAP is impacted). Treat it as<br /> delta[1]=1 to work around these legacy mkfs versions.<br /> <br /> `lclusterbits &gt; 14` is illegal for compact indexes, error out too.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.4.251 (including) 5.5 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.10.188 (including) 5.11 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.15 (including) 6.1.127 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.64 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.11.11 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.12 (including) 6.12.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools