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CVE-2009-0859

Published: 9 March 2009

The shm_get_stat function in ipc/shm.c in the shm subsystem in the Linux kernel before 2.6.28.5, when CONFIG_SHMEM is disabled, misinterprets the data type of an inode, which allows local users to cause a denial of service (system hang) via an SHM_INFO shmctl call, as demonstrated by running the ipcs program.

From the Ubuntu Security Team

The shared memory subsystem did not correctly handle certain shmctl calls when CONFIG_SHMEM was disabled. Ubuntu kernels were not vulnerable, since CONFIG_SHMEM is enabled by default.

Priority

Low

Status

Package Release Status
linux-source-2.6.15
Launchpad, Ubuntu, Debian
upstream Needs triage

dapper
Released (2.6.15-54.76)
gutsy Does not exist

hardy Does not exist

intrepid Does not exist

linux-source-2.6.22
Launchpad, Ubuntu, Debian
upstream Needs triage

dapper Does not exist

gutsy
Released (2.6.22-16.62)
hardy Does not exist

intrepid Does not exist

linux
Launchpad, Ubuntu, Debian
upstream Needs triage

dapper Does not exist

gutsy Does not exist

hardy
Released (2.6.24-23.52)
intrepid
Released (2.6.27-11.31)