VDB

CVE-2020-21688

CVE-2020-21688 PUBLISHED CVSS 8.800000190734863 HIGH

A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to execute arbitrary code.

EPSS 1.73% · 77.6th percentile

Risk Scores

CVSS 3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
1.73%
77.6th percentile

Affected Products

VendorProductVersions
Ubuntu:20.04:LTSqtwebengine-opensource-src5.12.5+dfsg-6ubuntu2, 5.12.4+dfsg-1ubuntu3, 5.12.4+dfsg-1ubuntu1
Ubuntu:20.04:LTSffmpeg7:4.2.1-2ubuntu1, 7:4.1.4-1build2, 0
Ubuntu:24.04:LTSqtwebengine-opensource-src5.15.15+dfsg-2build2, 5.15.15+dfsg-2ubuntu1, 5.15.16+dfsg-1ubuntu2
Ubuntu:18.04:LTSffmpeg7:3.4.4-0ubuntu0.18.04.1, 7:3.4-2ubuntu2, 7:3.4-4
Ubuntu:18.04:LTSqtwebengine-opensource-src5.9.2+dfsg-2ubuntu1, 5.9.3+dfsg-0ubuntu1, 5.9.4+dfsg-0ubuntu1
Ubuntu:25.10qtwebengine-opensource-src5.15.19+dfsg-1, 0, 5.15.19+dfsg2-1
Ubuntu:Pro:16.04:LTSffmpeg7:2.8.14-0ubuntu0.16.04.1, 7:2.8.15-0ubuntu0.16.04.1, 7:2.8.17-0ubuntu0.1
Ubuntu:22.04:LTSqtwebengine-opensource-src5.15.6+dfsg-1, 0, 5.15.6+dfsg-2

Timeline

  • Aug 10, 2021 CVE Published
  • Aug 11, 2021 EPSS Score
  • Oct 9, 2021 EPSS Score
  • Dec 8, 2021 EPSS Score
  • Feb 4, 2022 EPSS Score
  • Feb 5, 2022 EPSS Score
  • Apr 1, 2022 EPSS Score
  • Apr 5, 2022 EPSS Score
  • Aug 3, 2022 EPSS Score
  • Oct 1, 2022 EPSS Score
  • Nov 29, 2022 EPSS Score
  • Jan 28, 2023 EPSS Score

References

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