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CVE details

CVE-2021-4217

A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

Score
3.3 low
Published
2022-08-24
Links
NVD · cve.org

Matched ports (1)

PortPackageVersionStatusMaintainer
archivers/unzipunzip6.0_8unaddressedehaupt@FreeBSD.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>unzip</name>
	<range><lt>FIXME</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>A flaw was found in unzip. The vulnerability occurs due to improper
	handling of Unicode strings, which can lead to a null pointer
	dereference. This flaw allows an attacker to input a specially crafted
	zip file, leading to a crash or code execution.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2021-4217</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2021-4217</url>
    </references>
    <dates>
      <discovery>2022-08-24</discovery>
      <entry>2026-10-26</entry>
    </dates>
  </vuln>