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CVE details

CVE-2022-48434

libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbitrary code in some circumstances (e.g., hardware re-initialization upon a mid-video SPS change when Direct3D11 is used).

Score
8.1 high
Published
2023-03-29
Links
NVD · cve.org

Affected ports (2)

PortPackageVersionStatusMaintainer
multimedia/ffmpeg4ffmpeg44.4.8_2possibly backportedmonwarez@mailoo.org
multimedia/ffmpeg3ffmpeg33.0.2_1unaddressedkreinholz@gmail.com

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>ffmpeg3</name>
	<range><lt>5.1.2</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and
	other products, leaves stale hwaccel state in worker threads, which
	allows attackers to trigger a use-after-free and execute arbitrary
	code in some circumstances (e.g., hardware re-initialization upon a
	mid-video SPS change when Direct3D11 is used).</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2022-48434</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2022-48434</url>
    </references>
    <dates>
      <discovery>2023-03-29</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>