1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200402-06 / Kernel |
| Release Date | February 17, 2004 |
| Latest Revision | February 17, 2004: 01 |
| Impact | normal |
| Exploitable | local |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| sys-kernel/ck-sources | < 2.6.2 | >= 2.6.2 | AMD64 |
| sys-kernel/development-sources | < 2.6.2 | >= 2.6.2 | AMD64 |
| sys-kernel/gentoo-dev-sources | < 2.6.2 | >= 2.6.2 | AMD64 |
| sys-kernel/gentoo-sources | < 2.4.22-r6 | >= 2.4.22-r6 | AMD64 |
| sys-kernel/gentoo-test-sources | < 2.6.2 | >= 2.6.2-r1 | AMD64 |
| sys-kernel/gs-sources | < 2.4.25_pre7-r1 | >= 2.4.25_pre7-r1 | AMD64 |
| sys-kernel/vanilla-prepatch-sources | < 2.4.25_rc3 | >= 2.4.25_rc3 | AMD64 |
| sys-kernel/vanilla-sources | < 2.4.24-r1 | >= 2.4.24-r1 | AMD64 |
Related bugreports: No related gentoo bugreports
A vulnerability has been discovered by in the ptrace emulation code for AMD64 platforms when eflags are processed, allowing a local user to obtain elevated priveleges.
A vulnerability has been discovered by Andi Kleen in the ptrace emulation code for AMD64 platforms when eflags are processed, allowing a local user to obtain elevated priveleges. The Common Vulnerabilities and Exposures project, http://cve.mitre.org, has assigned CAN-2004-0001 to this issue.
Only users of the AMD64 platform are affected: in this scenario, a user may be able to obtain elevated priveleges, including root access. However, no public exploit is known for the vulnerability at this time.
There is no temporary workaround - a kernel upgrade is required. A list of unaffected kernels is provided along with this announcement.
Users are encouraged to upgrade to the latest available sources for their system:
Code Listing 3.1: Resolution |
# emerge sync # emerge -pv your-favourite-sources # emerge your-favourite-sources # # Follow usual procedure for compiling and installing a kernel. # # If you use genkernel, run genkernel as you would do normally. |
Code Listing 3.2: Resolution |
# # IF YOUR KERNEL IS MARKED as "remerge required!" THEN # # YOU SHOULD UPDATE YOUR KERNEL EVEN IF PORTAGE # # REPORTS THAT THE SAME VERSION IS INSTALLED. |