Sicherheitslücken in ffmpeg · Seite 4

Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress

When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption that all image channels have the same pixel type (and size), and that if there are four channels, the first four are "B", "G", "R" and "A". The channel parsing code can be found in decode_header. The buffer td->uncompressed_data is allocated in decode_block based on the xsize, ysize and computed current_channel_offset. The function dwa_uncompress then assumes at [5] that if there are 4 channels, these are "B", "G", "R" and "A", and in the calculations at [6] and [7] that all channels are of the same type, which matches the type of the main color

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Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress

When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption that the height and width are divisible by 8. If the height or width of the image is not divisible by 8, the copy loops at [0] and [1] will continue to write until the next multiple of 8. The buffer td->uncompressed_data is allocated in decode_block based on the precise height and width of the image, so the "rounded-up" multiple of 8 in the copy loop can exceed the buffer bounds, and the write block starting at [2] can corrupt following heap memory. We recommend upgrading to version 8.0 or beyond.

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Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress

When decoding an OpenEXR file that uses DWAA or DWAB compression, the specified raw length of run-length-encoded data is not checked when using it to calculate the output data. We read rle_raw_size from the input file at [0], we decompress and decode into the buffer td->rle_raw_data of size rle_raw_size at [1], and then at [2] we will access entries in this buffer up to (td->xsize - 1) * (td->ysize - 1) + rle_raw_size / 2, which may exceed rle_raw_size. We recommend upgrading to version 8.0 or beyond.

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Remote code execution via Heap Buffer Overflow in FFmpeg JPEG2000

A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code execution or cause denial of service via the channel definition cdef atom of JPEG2000.

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ffmpeg - security update

ffmpeg - security update

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FFmpeg AAC Encoder aacenc_tns.c ff_aac_search_for_tns stack-based overflow

A vulnerability, which was classified as critical, was found in FFmpeg up to 7.1. This affects the function ff_aac_search_for_tns of the file libavcodec/aacenc_tns.c of the component AAC Encoder. The manipulation leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

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CVE-2025-22921

FFmpeg git-master,N-113007-g8d24a28d06 was discovered to contain a segmentation violation via the component /libavcodec/jpeg2000dec.c.

CVE-2025-22919

A reachable assertion in FFmpeg git-master commit N-113007-g8d24a28d06 allows attackers to cause a Denial of Service (DoS) via opening a crafted AAC file.

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Unchecked sscanf return value which leads to memory data leak

Unchecked Return Value, Out-of-bounds Read vulnerability in FFmpeg allows Read Sensitive Constants Within an Executable. This vulnerability is associated with program files https://github.Com/FFmpeg/FFmpeg/blob/master/libavfilter/af_pan.C . This issue affects FFmpeg: 7.1. Issue was fixed:  https://github.com/FFmpeg/FFmpeg/commit/b5b6391d64807578ab872dc58fb8aa621dcfc38a https://github.com/FFmpeg/FFmpeg/commit/b5b6391d64807578ab872dc58fb8aa621dcfc38a This issue was discovered by: Simcha Kosman

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Ffmpeg: dash playlist ssrf vulnerability in ffmpeg

A flaw was found in FFmpeg's DASH playlist support. This vulnerability allows arbitrary HTTP GET requests to be made on behalf of the machine running FFmpeg via a crafted DASH playlist containing malicious URLs.

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Ffmpeg: hls xbin demuxer dos amplification in ffmpeg

A flaw was found in FFmpeg. This vulnerability allows unexpected additional CPU load and storage consumption, potentially leading to degraded performance or denial of service via the demuxing of arbitrary data as XBIN-formatted data without proper format validation.

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Ffmpeg: hls unsafe file extension bypass in ffmpeg

A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.

CVE-2024-36613

FFmpeg n6.1.1 has a vulnerability in the DXA demuxer of the libavformat library allowing for an integer overflow, potentially resulting in a denial-of-service (DoS) condition or other undefined behavior.

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Ffmpeg: null pointer dereference in ffmpeg hls parsing

A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization.

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Ffmpeg: improper handling of input format in tty demuxer of ffmpeg

A flaw was found in FFmpeg's TTY Demuxer. This vulnerability allows possible data exfiltration via improper parsing of non-TTY-compliant input files in HLS playlists.

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CVE-2024-36618

FFmpeg n6.1.1 has a vulnerability in the AVI demuxer of the libavformat library which allows for an integer overflow, potentially resulting in a denial-of-service (DoS) condition.

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CVE-2024-36617

FFmpeg n6.1.1 has an integer overflow vulnerability in the FFmpeg CAF decoder.

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CVE-2024-36616

An integer overflow in the component /libavformat/westwood_vqa.c of FFmpeg n6.1.1 allows attackers to cause a denial of service in the application via a crafted VQA file.

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CVE-2024-36615

FFmpeg n7.0 has a race condition vulnerability in the VP9 decoder. This could lead to a data race if video encoding parameters were being exported, as the side data would be attached in the decoder thread while being read in the output thread.

CVE-2024-35369

In FFmpeg version n6.1.1, specifically within the avcodec/speexdec.c module, a potential security vulnerability exists due to insufficient validation of certain parameters when parsing Speex codec extradata. This vulnerability could lead to integer overflow conditions, potentially resulting in undefined behavior or crashes during the decoding process.