Executive Summary

Informations
Name CVE-2023-52979 First vendor Publication 2025-03-27
Vendor Cve Last vendor Modification 2025-06-25

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:

squashfs: harden sanity check in squashfs_read_xattr_id_table

While mounting a corrupted filesystem, a signed integer '*xattr_ids' can become less than zero. This leads to the incorrect computation of 'len' and 'indexes' values which can cause null-ptr-deref in copy_bio_to_actor() or out-of-bounds accesses in the next sanity checks inside squashfs_read_xattr_id_table().

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52979

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3390

Sources (Detail)

https://git.kernel.org/stable/c/29e774dcb27116c06b9c57b1f1f14a1623738989
https://git.kernel.org/stable/c/72e544b1b28325fe78a4687b980871a7e4101f76
https://git.kernel.org/stable/c/b30a74f83265c24d1d0842c6c3928cd2e775a3fb
https://git.kernel.org/stable/c/b7398efe24a965cf3937b716c0b1011c201c5d6e
https://git.kernel.org/stable/c/cf5d6612092408157db6bb500c70bf6d67c40fbc
https://git.kernel.org/stable/c/db76fc535fbdfbf29fd0b93e49627537ad794c8c
https://git.kernel.org/stable/c/de2785aa3448d1ee7be3ab47fd4a873025f1b3d7
Source Url

Alert History

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Date Informations
2025-06-26 00:20:43
  • Multiple Updates
2025-06-25 12:27:54
  • Multiple Updates
2025-06-24 02:29:33
  • Multiple Updates
2025-05-27 13:39:36
  • Multiple Updates
2025-05-27 02:29:06
  • Multiple Updates
2025-03-31 17:20:33
  • Multiple Updates
2025-03-27 21:20:35
  • First insertion