glsa-201709-19.xml


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201709-19">
  <title>Exim: Local privilege escalation</title>
  <synopsis>A vulnerability in Exim may allow local users to gain root
    privileges.
    
  </synopsis>
  <product type="ebuild">exim</product>
  <announced>2017-09-24</announced>
  <revised count="1">2017-09-24</revised>
  <bug>622212</bug>
  <access>local</access>
  <affected>
    <package name="mail-mta/exim" auto="yes" arch="*">
      <unaffected range="ge">4.89-r1</unaffected>
      <vulnerable range="lt">4.89-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>Exim is a message transfer agent (MTA) developed at the University of
      Cambridge for use on Unix systems connected to the Internet.
    </p>
  </background>
  <description>
    <p>Exim supports the use of multiple “-p” command line arguments
      causing a memory leak. This could lead to a stack-clash in user-space and
      as result the attacker can, “clash” or “smash” the stack or
      another memory region, or “jump” over the stack guard-page.
    </p>
  </description>
  <impact type="normal">
    <p>A local attacker could obtain root privileges.</p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Exim users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=mail-mta/exim-4.89-r1"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-1000369">
      CVE-2017-1000369
    </uri>
  </references>
  <metadata tag="requester" timestamp="2017-09-19T01:45:18Z">chrisadr</metadata>
  <metadata tag="submitter" timestamp="2017-09-24T15:49:28Z">chrisadr</metadata>
</glsa>