CVE-2009-0835

Severity: low (CVSS 3.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-03-06 · updated 2026-06-16
Weakness: CWE-264

Description

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.

Affected products

Linux kernel: 2.6.25, 2.6.25.1, 2.6.25.2, 2.6.25.3, 2.6.25.4, 2.6.25.5 (+7)

References

http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
http://lkml.org/lkml/2009/2/28/23
http://marc.info/?l=linux-kernel&m=123579056530191&w=2
http://marc.info/?l=linux-kernel&m=123579069630311&w=2
http://marc.info/?l=oss-security&m=123597627132485&w=2
http://scary.beasts.org/security/CESA-2009-001.html
http://scary.beasts.org/security/CESA-2009-004.html
http://scarybeastsecurity.blogspot.com/2009/02/linux-kernel-minor-seccomp.html
http://secunia.com/advisories/34084

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