#VU92845 Security restrictions bypass in Linux kernel - CVE-2009-0835

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Main Vulnerability Database Vulnerabilities #VU92845

#VU92845 Security restrictions bypass in Linux kernel - CVE-2009-0835

Published: March 6, 2009 / Updated: June 20, 2024


Vulnerability identifier: #VU92845
Vulnerability risk: Low
CVSSv4.0: 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/E:P/U:Clear
CVE-ID: CVE-2009-0835
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: Public exploit is available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

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

The __secure_computing function in kernel/seccomp.c in the seccomp subsystem in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform, when CONFIG_SECCOMP is enabled, does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass intended access restrictions via crafted syscalls that are misinterpreted as (a) stat or (b) chmod, a related issue to CVE-2009-0342 and CVE-2009-0343.


Remediation

Install update from vendor's repository.

External links