CVE-2009-1338

kernel: 'kill sig -1' must only apply to caller's pid namespace

Published Apr 22, 2009 CVSS 2.0 · 4.6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-1787-1 New Linux 2.6.24 packages fix several vulnerabilities
Debian DSA Debian DSA DSA-1800-1 New Linux 2.6.26 packages fix several vulnerabilities
EUVD EUVD EUVD-2009-1336 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.
Ubuntu USN Ubuntu USN USN-793-1 Linux kernel vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 7, 2024, 5:13 AM
Reserved
Apr 17, 2009, 12:00 AM
Status
Modified
Published
Apr 22, 2009, 3:30 PM
Modified
Jun 16, 2026, 11:07 PM
Severity
Moderate
Public date
Oct 29, 2008, 12:00 AM