SB2012012707 - NULL pointer dereference in Linux kernel
Published: January 27, 2012 Updated: August 11, 2020
Security Bulletin ID
SB2012012707
Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2011-4325)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in Linux kernel before 2.6.31-rc6 calls certain functions without properly initializing certain data, which allows local users to cause a denial of service (NULL pointer dereference and O_DIRECT oops), as demonstrated using diotest4 from LTP. A remote attacker can perform a denial of service (DoS) attack.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.