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Advisories

FFmpeg 8.0 - 8.1.2 Stack Buffer Overflow in Vulkan HEVC Decoder

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severity
high
date
Affecting

  • FFmpeg >= 8.0, <= 8.1.2

CWE
  • CWE-121 Stack-based Buffer Overflow
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Pavel Kohout, Aisle Research
Description
FFmpeg versions 8.0 through 8.1.2 contains a stack buffer overflow vulnerability in the Vulkan HEVC hardware decoder that allows remote attackers to overwrite return addresses and adjacent stack frames by supplying a crafted HEVC/H.265 bitstream. Attackers can embed a malicious vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS in any supported container format to overflow stack-allocated arrays in the vk_hevc_end_frame function, potentially achieving arbitrary code execution.

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