SB2009081402 - Race condition in Linux kernel proc

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Main Vulnerability Database SB2009081402

SB2009081402 - Race condition in Linux kernel proc

Published: August 14, 2009

Security Bulletin ID SB2009081402
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Race condition (CVE-ID: CVE-2009-2691)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a race condition within the m_start() function in fs/proc/task_nommu.c, within the m_start() function in fs/proc/task_mmu.c, within the check_mem_permission() and mm_for_maps() functions in fs/proc/base.c. A local user can gain access to sensitive information.


Remediation

Install update from vendor's website.

References