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GLSA-200402-06 : Updated kernel packages fix the AMD64 ptrace vulnerability

medium Nessus Plugin ID 14450

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200402-06 (Updated kernel packages fix the AMD64 ptrace vulnerability)

 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 privileges. The Common Vulnerabilities and Exposures project, http://cve.mitre.org, has assigned CAN-2004-0001 to this issue.
 Impact :

 Only users of the AMD64 platform are affected: in this scenario, a user may be able to obtain elevated privileges, including root access. However, no public exploit is known for the vulnerability at this time.
 Workaround :

 There is no temporary workaround - a kernel upgrade is required. A list of unaffected kernels is provided along with this announcement.

Solution

Users are encouraged to upgrade to the latest available sources for their system:
 # 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.
 # # IF YOUR KERNEL IS MARKED as 'remerge required!' THEN # # YOU SHOULD UPDATE YOUR KERNEL EVEN IF PORTAGE # # REPORTS THAT THE SAME VERSION IS INSTALLED.

See Also

https://security.gentoo.org/glsa/200402-06

Plugin Details

Severity: Medium

ID: 14450

File Name: gentoo_GLSA-200402-06.nasl

Version: 1.15

Type: local

Published: 8/30/2004

Updated: 1/6/2021

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:ck-sources, p-cpe:/a:gentoo:linux:development-sources, p-cpe:/a:gentoo:linux:gentoo-dev-sources, p-cpe:/a:gentoo:linux:gentoo-sources, p-cpe:/a:gentoo:linux:gentoo-test-sources, p-cpe:/a:gentoo:linux:gs-sources, p-cpe:/a:gentoo:linux:vanilla-prepatch-sources, p-cpe:/a:gentoo:linux:vanilla-sources, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list, Host/Gentoo/arch

Patch Publication Date: 2/17/2004

Reference Information

GLSA: 200402-06