NULL pointer dereference in Linux kernel - CVE-2009-0748

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Main Vulnerability Database Vulnerabilities #VU91020

NULL pointer dereference in Linux kernel - CVE-2009-0748

Published: February 27, 2009 / Updated: October 10, 2018


Vulnerability identifier: #VU91020
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2009-0748
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to NULL pointer dereference within the ext4_fill_super() function in fs/ext4/super.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Ubuntu
linux-source-2.6.22 (Ubuntu package)
linux (Ubuntu package)

How to mitigate CVE-2009-0748

Install update from vendor's website.

linux-source-2.6.22 (Ubuntu package) - update to 2.6.22-16.62
linux (Ubuntu package) - addressed in versions 2.6.24-23.52, 2.6.27-11.31

External References

Related Security Bulletins