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CVE-2009-0835

Publication date 6 March 2009

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

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.

From the Ubuntu Security Team

The syscall interface did not correctly validate parameters when crossing the 64-bit/32-bit boundary. A local attacker could bypass certain syscall restricts via crafted syscalls.

Status

Package Ubuntu Release Status
linux 8.10 intrepid
Fixed 2.6.27-11.31
8.04 LTS hardy
Fixed 2.6.24-23.52
7.10 gutsy Not in release
6.06 LTS dapper Not in release
linux-source-2.6.15 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy Not in release
6.06 LTS dapper
Fixed 2.6.15-54.76
linux-source-2.6.22 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy
Fixed 2.6.22-16.62
6.06 LTS dapper Not in release

References

Related Ubuntu Security Notices (USN)

    • USN-752-1
    • Linux kernel vulnerabilities
    • 7 April 2009
    • USN-751-1
    • Linux kernel vulnerabilities
    • 6 April 2009

Other references