Executive Summary

Informations
Name CVE-2024-56774 First vendor Publication 2025-01-08
Vendor Cve Last vendor Modification 2025-01-09

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:

btrfs: add a sanity check for btrfs root in btrfs_search_slot()

Syzbot reports a null-ptr-deref in btrfs_search_slot().

The reproducer is using rescue=ibadroots, and the extent tree root is corrupted thus the extent tree is NULL.

When scrub tries to search the extent tree to gather the needed extent info, btrfs_search_slot() doesn't check if the target root is NULL or not, resulting the null-ptr-deref.

Add sanity check for btrfs root before using it in btrfs_search_slot().

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56774

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3668

Sources (Detail)

https://git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4
https://git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab
https://git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece
https://git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b
https://git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6
Source Url

Alert History

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0
1
Date Informations
2025-01-10 00:20:41
  • Multiple Updates
2025-01-08 21:20:26
  • First insertion