CVE-2009-0835
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…
Does this matter?
A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is low and EPSS is 0.9%. Treat it as high on anything reachable from the internet.
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.
- CVSS 2.0
- 3.6 LOWAV:L/AC:L/Au:N/C:P/I:P/A:N
- EPSS
- 0.93% probability · 60th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 2 March 2009
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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=2Exploit
- http://marc.info/?l=oss-security&m=123597627132485&w=2
- http://scary.beasts.org/security/CESA-2009-001.htmlExploit
- http://scary.beasts.org/security/CESA-2009-004.html
- http://scarybeastsecurity.blogspot.com/2009/02/linux-kernel-minor-seccomp.html
- http://secunia.com/advisories/34084Vendor Advisory
- http://secunia.com/advisories/34786
- http://secunia.com/advisories/34917Vendor Advisory
- http://secunia.com/advisories/35121Vendor Advisory
- http://secunia.com/advisories/35185Vendor Advisory
- http://secunia.com/advisories/35390Vendor Advisory
- http://secunia.com/advisories/35394Vendor Advisory
- http://www.debian.org/security/2009/dsa-1800
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:118
- http://www.redhat.com/support/errata/RHSA-2009-0451.html
- http://www.securityfocus.com/bid/33948
- http://www.ubuntu.com/usn/usn-751-1
- https://bugzilla.redhat.com/show_bug.cgi?id=487255Exploit
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.