SB2010011901 - Privilege escalation in Linux kernel fs

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Main Vulnerability Database SB2010011901

SB2010011901 - Privilege escalation in Linux kernel fs

Published: January 19, 2010 Updated: June 5, 2024

Security Bulletin ID SB2010011901
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2009-4141)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the fasync_helper() function in fs/fcntl.c. A local user can execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References