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PostPosted: Sun Sep 17, 2017 7:26 pm    Post subject: [ GLSA 201709-05 ] chkrootkit Reply with quote

Gentoo Linux Security Advisory

Title: chkrootkit: Local privilege escalation (GLSA 201709-05)
Severity: high
Exploitable: local
Date: 2017-09-17
Bug(s): #512356
ID: 201709-05

Synopsis

A vulnerability in chkrootkit may allow local users to gain root
privileges.


Background

chkrootkit is a tool to locally check for signs of a rootkit.

Affected Packages

Package: app-forensics/chkrootkit
Vulnerable: < 0.50
Unaffected: >= 0.50
Architectures: All supported architectures


Description

When /tmp is mounted without the noexec option chkrootkit will execute
files in /tmp with root privileges.


Impact

A local attacker could possibly execute arbitrary code with root
privileges.


Workaround

Users should mount /tmp with noexec option.

Resolution

All chkrootkit users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=app-forensics/chkrootkit-0.50"
   


References


CVE-2014-0476
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