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Advisories

Fraunhofer HHI VVdeC before 3.2.1 Out-of-Bounds Read via Slice::getRefPic

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Severity
medium
Date
Affecting

  • vvdec >= 0, < 3.2.1

CWE
  • CWE-129 Improper Validation of Array Index
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Alexander A. Shvedov (sigdevel)
Description
Fraunhofer HHI VVdeC before 3.2.1 contains an out-of-bounds read vulnerability that allows attackers to crash the decoder by supplying bitstreams with overlapping slice CTU coverage. Attackers can code a CTU in a second slice so a bi-predicted BDOF coding unit carries a negative reference index, causing Slice::getRefPic to read outside m_apcRefPicList and crash decoding.

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