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Bug 267240 (CVE-2009-1338)

Summary: Kernel: <2.6.28 kernel/signal.c kill_something_info() DOS (CVE-2009-1338)
Product: Gentoo Security Reporter: Stefan Behte (RETIRED) <craig>
Component: KernelAssignee: Gentoo Security <security>
Severity: normal CC: hardened-kernel+disabled, kernel
Priority: High    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard: [linux > 2.6 < 2.6.28]
Package list:
Runtime testing required: ---

Description Stefan Behte (RETIRED) gentoo-dev Security 2009-04-23 16:34:43 UTC
CVE-2009-1338 (
  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.