CVE-2009-0859

Severity: medium (CVSS 4.7 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-03-09 · updated 2026-06-16
Weakness: CWE-20

Description

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.

Affected products

Linux kernel: through 2.6.28.4

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a68e61e8ff2d46327a37b69056998b47745db6fa
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.5
http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
http://marc.info/?l=git-commits-head&m=123387479500599&w=2
http://marc.info/?l=linux-kernel&m=120428209704324&w=2
http://marc.info/?l=linux-kernel&m=123309645625549&w=2
http://openwall.com/lists/oss-security/2009/03/06/1
http://patchwork.kernel.org/patch/6554/
http://secunia.com/advisories/34981
http://secunia.com/advisories/35011

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