SB2007100501 - Improper input validation in Linux kernel



SB2007100501 - Improper input validation in Linux kernel

Published: October 5, 2007

Security Bulletin ID SB2007100501
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 security vulnerability.


1) Improper input validation (CVE-ID: CVE-2007-4133)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The (1) hugetlb_vmtruncate_list and (2) hugetlb_vmtruncate functions in fs/hugetlbfs/inode.c in the Linux kernel before 2.6.19-rc4 perform certain prio_tree calculations using HPAGE_SIZE instead of PAGE_SIZE units, which allows local users to cause a denial of service (panic) via unspecified vectors.


Remediation

Install update from vendor's website.