CVE-2008-2729

Published: 30 June 2008

arch/x86_64/lib/copy_user.S in the Linux kernel before 2.6.19 on some AMD64 systems does not erase destination memory locations after an exception during kernel memory copy, which allows local users to obtain sensitive information.

From the Ubuntu security team

The copy_to_user routine in the kernel did not correctly clear memory destination addresses when running on 64bit kernels. A local attacker could exploit this to gain access to sensitive kernel memory, leading to a loss of privacy.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.19~rc1)
Patches:
upstream: 3022d734a54cbd2b65eea9a024564821101b4a9a
Vendor: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/kernel-2.6.9-67.0.20.EL.src.rpm:SOURCES/linux-2.6.9-x86_64-copy_user-zero-tail.patch
linux-source-2.6.15
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.19~rc1)
linux-source-2.6.17
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.19~rc1)
linux-source-2.6.20
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.19~rc1)
linux-source-2.6.22
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.19~rc1)