glsa-202105-29.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

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202105-29">
  <title>Tar: Denial of service</title>
  <synopsis>A vulnerability in Tar could lead to a Denial of Service condition.</synopsis>
  <product type="ebuild">tar</product>
  <announced>2021-05-26</announced>
  <revised count="1">2021-05-26</revised>
  <bug>778548</bug>
  <access>local, remote</access>
  <affected>
    <package name="app-arch/tar" auto="yes" arch="*">
      <unaffected range="ge">1.34</unaffected>
      <vulnerable range="lt">1.34</vulnerable>
    </package>
  </affected>
  <background>
    <p>The Tar program provides the ability to create and manipulate tar
      archives.
    </p>
  </background>
  <description>
    <p>It was discovered that GNU Tar had a memory leak when processing archive
      headers.
    </p>
  </description>
  <impact type="low">
    <p>A remote attacker could entice a user to open a specially crafted
      archive using Tar, possibly resulting in a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Tar users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-arch/tar-1.34"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-20193">CVE-2021-20193</uri>
  </references>
  <metadata tag="requester" timestamp="2021-05-24T01:03:25Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2021-05-26T10:11:52Z">whissi</metadata>
</glsa>