Arch Linux Security Advisory ASA-201701-38
=========================================
Severity: Medium
Date    : 2017-01-29
CVE-ID  : CVE-2017-2583
Package : linux-zen
Type    : privilege escalation
Remote  : No
Link    : https://security.archlinux.org/AVG-151

Summary
======
The package linux-zen before version 4.9.5-1 is vulnerable to privilege
escalation.

Resolution
=========
Upgrade to 4.9.5-1.

# pacman -Syu "linux-zen>=4.9.5-1"

The problem has been fixed upstream in version 4.9.5.

Workaround
=========
None.

Description
==========
The Linux kernel > 3.6-rc1, when built with Kernel-based Virtual
Machine (CONFIG_KVM) support, is vulnerable to an incorrect segment
selector (SS) value error. It could occur loading values into SS
register in long mode.
A user/process inside a guest host could use this flaw to crash the
guest, resulting in denial of service, or potentially escalate their
privileges inside the guest system on an AMD processor.

Impact
=====
A local attacker in a guest host is able to crash the system or
escalate privileges inside the guest on an AMD processor.

References
=========
https://seclists.org/oss-sec/2017/q1/137
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/
https://security.archlinux.org/CVE-2017-2583

ArchLinux: 201701-38: linux-zen: privilege escalation

January 29, 2017

Summary

The Linux kernel > 3.6-rc1, when built with Kernel-based Virtual Machine (CONFIG_KVM) support, is vulnerable to an incorrect segment selector (SS) value error. It could occur loading values into SS register in long mode. A user/process inside a guest host could use this flaw to crash the guest, resulting in denial of service, or potentially escalate their privileges inside the guest system on an AMD processor.

Resolution

Upgrade to 4.9.5-1. # pacman -Syu "linux-zen>=4.9.5-1"
The problem has been fixed upstream in version 4.9.5.

References

https://seclists.org/oss-sec/2017/q1/137 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ https://security.archlinux.org/CVE-2017-2583

Severity
Package : linux-zen
Type : privilege escalation
Remote : No
Link : https://security.archlinux.org/AVG-151

Workaround

None.

Related News

2.Motherboard Esm H320
2 - 3 min read
German software engineer Lennart Poettering recently presented run0 , a new tool in systemd v256 that aims to address the security concerns
22.Lock ScreenEffect Esm H320
2 - 3 min read
Red Hat recently released its newest enterprise Linux distro, Red Hat Enterprise Linux (RHEL) 9.4 , which introduces several features designed to
8.Locks HexConnections CodeGlobe Esm H320
1 - 2 min read
The latest release of Debian , one of the oldest and most trusted distributions within the Linux ecosystem, redefines security, stability, and
20.Lock AbstractDigital Circular Esm H320
1 - 2 min read
The Ubuntu security team has recently discovered and addressed multiple vulnerabilities in the Apache HTTP Server. The vulnerabilities affected
1.Penguin Landscape Esm H320
1 - 2 min read
A critical vulnerability was discovered in the Linux kernel's netfilter subsystem, specifically within the nf_tables component, posing potential
19.Laptop Bed Esm H320
2 - 3 min read
The release of Google Chrome 124 addresses four vulnerabilities, including a critical security flaw that can enable attackers to execute arbitrary
23.Tablet Connections Esm H320
2 - 3 min read
The release of Ubuntu 24.04 LTS , also known as Noble Numbat, brings various security enhancements and exciting new features . These improvements
4.Lock AbstractDigital Esm H320
2 - 3 min read
Tails 6.2 is a new Linux distribution release that expands its multilingual support and improves security features. The distribution is a
Sign Up

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved