CVE-2009-1338
The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not...
The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.
Exploit likelihood
What each source reports
NVD Score used
The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.
- Record
CVE-2009-1338- CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.
- Record
CVE-2009-1338- Updated
- 2026-11-02
EUVDEUVD-2009-1336 No score
The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.
- Record
EUVD-2009-1336- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qwmr-cmwr-523q No score
The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not...
The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.
- Record
GHSA-qwmr-cmwr-523q- Updated
- 2026-11-02
OSVBELL-CVE-2009-1338
CVE-2009-1338 does not affect BellSoft software
- Record
BELL-CVE-2009-1338- CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linux-2.6.24Debian:4.0 From an advisory covering 24 CVEs |
before 2.6.24-6~etchnhalf.8etch1, plus listed versions 2.6.24-5~etchnhalf.12.6.24-6~etchnhalf.12.6.24-6~etchnhalf.22.6.24-6~etchnhalf.32.6.24-6~etchnhalf.4 Show 4 moreShow less2.6.24-6~etchnhalf.52.6.24-6~etchnhalf.62.6.24-6~etchnhalf.72.6.24-6~etchnhalf.8 |
2.6.24-6~etchnhalf.8etch1 |
linux-2.6Debian:5.0 From an advisory covering 13 CVEs |
before 2.6.26-15lenny2, plus listed versions 2.6.26-132.6.26-13lenny22.6.26-13lenny2~bpo40+12.6.26-142.6.26-152.6.26-15lenny12.6.26-15~bpo40+12.6.26-15~bpo40+2 |
2.6.26-15lenny2 |
user-mode-linuxDebian:5.0 From an advisory covering 13 CVEs |
before 2.6.26-1um-2+15lenny2, plus listed versions 2.6.26-1um-22.6.26-1um-2+15 |
2.6.26-1um-2+15lenny2 |
kernel-rtRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-debugRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-debug-debuginfoRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-debug-develRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-debuginfoRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-debuginfo-commonRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-develRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
Show 7 moreShow less
| Package | Affected | Fixed |
|---|---|---|
kernel-rt-docRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-traceRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-trace-debuginfoRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-trace-develRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-vanillaRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-vanilla-debuginfoRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
kernel-rt-vanilla-develRed Hat:enterprise_mrg:1::el5 From an advisory covering 5 CVEs |
before 0:2.6.24.7-117.el5rt | 0:2.6.24.7-117.el5rt |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-1338 is a medium vulnerability (CVSS 4.6) in Linux Kernel, published April 22, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 33rd percentile. No source names a fixed version.
References
git.kernel.org?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d25141a818383b3c3b09f065698c544a7a0ec6e7
secunia.com/advisories/35656
kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28
securityfocus.com/archive/1/503610/100/0/threaded
bugzilla.redhat.com/show_bug.cgi?id=496031
exchange.xforce.ibmcloud.com/vulnerabilities/50386
Show 42 moreShow less
openwall.com/lists/oss-security/2009/04/17/4
ubuntu.com/usn/usn-793-1
redhat.com/support/errata/RHSA-2009-1081.html
debian.org/security/2009/dsa-1800
lkml.org/lkml/2008/7/23/148
wiki.rpath.com/Advisories:rPSA-2009-0084
nvd.nist.gov/vuln/detail/CVE-2009-1338
github.com/advisories/GHSA-qwmr-cmwr-523q
docs.bell-sw.com/security/cves/CVE-2009-1338
access.redhat.com/errata/RHSA-2009:1081
security.access.redhat.com/data/csaf/v2/advisories/2009/rhsa-2009_1081.json
cve.org/CVERecord?id=CVE-2009-1072