Input validation error in Linux kernel - CVE-2009-0834

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Main Vulnerability Database Vulnerabilities #VU94171

Input validation error in Linux kernel - CVE-2009-0834

Published: March 6, 2009 / Updated: August 26, 2020


Vulnerability identifier: #VU94171
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2009-0834
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to read and manipulate data.

The vulnerability exists due to improper input validation within the send_sigtrap() function in arch/x86/kernel/ptrace.c. A local user can read and manipulate data.


Affected software

Linux kernel
Ubuntu
linux-source-2.6.15 (Ubuntu package)
linux-source-2.6.22 (Ubuntu package)
linux (Ubuntu package)

How to mitigate CVE-2009-0834

Install update from vendor's website.

linux-source-2.6.15 (Ubuntu package) - update to 2.6.15-54.76
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