SB20260727214 - Integer overflow in Linux kernel hfsplus

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Main Vulnerability Database SB20260727214

SB20260727214 - Integer overflow in Linux kernel hfsplus

Published: July 27, 2026

Security Bulletin ID SB20260727214
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Integer overflow (CVE-ID: CVE-2026-64361)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an integer overflow in check_and_correct_requested_length() in the hfs and hfsplus filesystem code when processing crafted filesystem metadata. A local user can trigger an underflowed length value that bypasses a bounds check to cause a denial of service.

Exploitation can result in a read far beyond the node buffer during a subsequent memmove operation.


Remediation

Install update from vendor's website.

References