Executive Summary

Informations
Name CVE-2024-26590 First vendor Publication 2024-02-22
Vendor Cve Last vendor Modification 2024-03-18

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

erofs: fix inconsistent per-file compression format

EROFS can select compression algorithms on a per-file basis, and each per-file compression algorithm needs to be marked in the on-disk superblock for initialization.

However, syzkaller can generate inconsistent crafted images that use an unsupported algorithmtype for specific inodes, e.g. use MicroLZMA algorithmtype even it's not set in `sbi->available_compr_algs`. This can lead to an unexpected "BUG: kernel NULL pointer dereference" if the corresponding decompressor isn't built-in.

Fix this by checking against `sbi->available_compr_algs` for each m_algorithmformat request. Incorrect !erofs_sb_has_compr_cfgs preset bitmap is now fixed together since it was harmless previously.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26590

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3561

Sources (Detail)

https://git.kernel.org/stable/c/118a8cf504d7dfa519562d000f423ee3ca75d2c4
https://git.kernel.org/stable/c/47467e04816cb297905c0f09bc2d11ef865942d9
https://git.kernel.org/stable/c/823ba1d2106019ddf195287ba53057aee33cf724
https://git.kernel.org/stable/c/eed24b816e50c6cd18cbee0ff0d7218c8fced199
Source Url

Alert History

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Date Informations
2024-03-18 21:27:34
  • Multiple Updates
2024-03-01 17:27:26
  • Multiple Updates
2024-02-23 00:27:22
  • Multiple Updates
2024-02-22 21:27:25
  • First insertion