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Advisories

libheif 1.18.0 before 1.23.3 Heap Buffer Overflow via unci Mixed-Interleave Decoder

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Severity
high
Date
Affecting

  • libheif >= 1.18.0, < 1.23.3

CWE
  • CWE-122 Heap-based Buffer Overflow
CVSS
7.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Alex Thomas (Wordfence), poppo25, Wordfence Argus
Description
libheif 1.18.0 before 1.23.3 contains a heap-based buffer overflow vulnerability in unc_decoder_mixed_interleave::processTile() that allows attackers to write out of bounds by supplying chroma components with unequal bit depths. Attackers can craft a HEIF file declaring, for example, 16-bit Cb and 8-bit Cr to trigger file-controlled heap writes past the Cr plane, potentially achieving code execution in image-processing pipelines.

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