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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.

Notes

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

Priority

Low

Status

Package Release Status
linux-source-2.6.15
Launchpad, Ubuntu, Debian
upstream Not vulnerable

dapper Not vulnerable

gutsy Does not exist

hardy Does not exist

intrepid Does not exist

linux-source-2.6.22
Launchpad, Ubuntu, Debian
upstream Not vulnerable

dapper Does not exist

gutsy Not vulnerable

hardy Does not exist

intrepid Does not exist

linux
Launchpad, Ubuntu, Debian
upstream
Released (2.6.28-rc7)
dapper Does not exist

gutsy Does not exist

hardy Not vulnerable

intrepid
Released (2.6.27-11.27)