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CVE-2008-5395

Publication date 9 December 2008

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 8.10 intrepid
Fixed 2.6.27-11.27
8.04 LTS hardy
Not affected
7.10 gutsy Not in release
6.06 LTS dapper Not in release
linux-source-2.6.15 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy Not in release
6.06 LTS dapper
Not affected
linux-source-2.6.22 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy
Not affected
6.06 LTS dapper Not in release

Notes

smb

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

References

Related Ubuntu Security Notices (USN)

    • USN-715-1
    • Linux kernel vulnerabilities
    • 29 January 2009

Other references