CVE-2009-1338

Description

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.

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d25141a818383b3c3b09f065698c544a7a0ec6e7
http://secunia.com/advisories/35656 third party advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28 patch vendor advisory
http://www.securityfocus.com/archive/1/503610/100/0/threaded mailing list
https://bugzilla.redhat.com/show_bug.cgi?id=496031 patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/50386 vdb entry
http://www.openwall.com/lists/oss-security/2009/04/17/4 mailing list
http://secunia.com/advisories/35120 third party advisory
http://www.ubuntu.com/usn/usn-793-1 vendor advisory
http://www.redhat.com/support/errata/RHSA-2009-1081.html vendor advisory
http://secunia.com/advisories/34981 third party advisory
http://www.debian.org/security/2009/dsa-1800 vendor advisory
http://lkml.org/lkml/2008/7/23/148 mailing list patch
http://secunia.com/advisories/35343 third party advisory
http://www.openwall.com/lists/oss-security/2009/04/21/1 mailing list
http://www.debian.org/security/2009/dsa-1787 vendor advisory
http://wiki.rpath.com/Advisories:rPSA-2009-0084
http://www.openwall.com/lists/oss-security/2009/04/16/2 mailing list
http://secunia.com/advisories/35121 third party advisory

Frequently Asked Questions

What is the severity of CVE-2009-1338?
CVE-2009-1338 has been scored as a medium severity vulnerability.
How to fix CVE-2009-1338?
To fix CVE-2009-1338, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-1338 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2009-1338 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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