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CVE-2008-5395

Published: 9 December 2008

The parisc_show_stack function in arch/parisc/kernel/traps.c in the Linux kernel before 2.6.28-rc7 on PA-RISC allows local users to cause a denial of service (system crash) via vectors associated with an attempt to unwind a stack that contains userspace addresses.

From the Ubuntu security team

Helge Deller discovered that PA-RISC stack unwinding was not handled correctly. A local attacker could exploit this to crash the system, leading do a denial of service. This did not affect official Ubuntu kernels, but was fixed in the source for anyone performing HPPA kernel builds.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
dapper Does not exist

gutsy Does not exist

hardy Not vulnerable

intrepid
Released (2.6.27-11.27)
upstream
Released (2.6.28-rc7)
linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper Not vulnerable

gutsy Does not exist

hardy Does not exist

intrepid Does not exist

upstream Not vulnerable

linux-source-2.6.22
Launchpad, Ubuntu, Debian
dapper Does not exist

gutsy Not vulnerable

hardy Does not exist

intrepid Does not exist

upstream Not vulnerable

Notes

AuthorNote
smb
The call do dump_stack was not added before v2.6.25-rc6. So the resulting panic will not happen.

References