Executive Summary

Informations
Name CVE-2022-49762 First vendor Publication 2025-05-01
Vendor Cve Last vendor Modification 2025-05-02

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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:

ntfs: check overflow when iterating ATTR_RECORDs

Kernel iterates over ATTR_RECORDs in mft record in ntfs_attr_find(). Because the ATTR_RECORDs are next to each other, kernel can get the next ATTR_RECORD from end address of current ATTR_RECORD, through current ATTR_RECORD length field.

The problem is that during iteration, when kernel calculates the end address of current ATTR_RECORD, kernel may trigger an integer overflow bug in executing `a = (ATTR_RECORD*)((u8*)a + le32_to_cpu(a->length))`. This may wrap, leading to a forever iteration on 32bit systems.

This patch solves it by adding some checks on calculating end address of current ATTR_RECORD during iteration.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49762

Sources (Detail)

https://git.kernel.org/stable/c/45683723f6b53e39e8a4cec0894e61fd6ec71989
https://git.kernel.org/stable/c/5559eb5809353a83a40a1e4e7f066431c7b83020
https://git.kernel.org/stable/c/63095f4f3af59322bea984a6ae44337439348fe0
https://git.kernel.org/stable/c/785b2af9654b8beac55644e36da0085c5d776361
https://git.kernel.org/stable/c/86f36de14dce5802856bb7a5921d74439db00b64
https://git.kernel.org/stable/c/957732a09c3828267c2819d31c425aa793dd475b
https://git.kernel.org/stable/c/b612f924f296408d7d02fb4cd01218afd4ed7184
https://git.kernel.org/stable/c/b63ddb3ba61e2d3539f87e095c881e552bc45dab
Source Url

Alert History

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0
Date Informations
2025-05-27 02:12:01
  • First insertion