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GLSA
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Joined: 12 May 2004
Posts: 2001

PostPosted: Sun Nov 12, 2017 11:26 pm    Post subject: [ glsa 201711-11 ] vde Reply with quote

Gentoo Linux Security Advisory

Title: VDE: Privilege escalation (GLSA 201711-11)
Severity: normal
Exploitable: local
Date: 2017-11-12
Bug(s): #603382
ID: 201711-11

Synopsis

A vulnerability was discovered in VDE which may allow local users
to gain root privileges.


Background

VDE is an ethernet compliant virtual network that can be spawned over a
set of physical computer over the Internet.


Affected Packages

Package: net-misc/vde
Vulnerable: < 2.3.2-r4
Unaffected: >= 2.3.2-r4
Architectures: All supported architectures


Description

It was discovered that Gentoo’s default VDE installation suffered from
a privilege escalation vulnerability in the init script. This script
calls an unsafe ‘chown’ command which gives members from “qemu”
group root privileges.


Impact

A local attacker could escalate privileges to root.

Workaround

There is no known workaround at this time.

Resolution

All VDE users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=net-misc/vde-2.3.2-r4"
   


References


CVE-2017-16638
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