CVE-2020-22038

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c.

FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.

Security Fix(es):

A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file.(CVE-2020-21697)

Buffer Overflow vulnerability in FFmpeg 4.2 at convolution_y_10bit in libavfilter/vf_vmafmotion.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22019)

Buffer Overflow vulnerability in FFmpeg 4.2 in the build_diff_map function in libavfilter/vf_fieldmatch.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22020)

Buffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in libavfilter/vf_yadif.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22021)

Buffer Overflow vulnerability exists in FFmpeg 4.2 in the config_input function at libavfilter/af_tremolo.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22026)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in avcodec_alloc_context3 at options.c.(CVE-2020-22037)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c.(CVE-2020-22038)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the inavi_add_ientry function.(CVE-2020-22039)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak at the fifo_alloc_common function in libavutil/fifo.c.(CVE-2020-22043)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the url_open_dyn_buf_internal function in libavformat/aviobuf.c.(CVE-2020-22044)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the filter_frame function in vf_tile.c.(CVE-2020-22051)

Integer Overflow vulnerability in function filter16_roberts in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts.(CVE-2021-38090)

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.(CVE-2025-22919)

FFmpeg git-master,N-113007-g8d24a28d06 was discovered to contain a segmentation violation via the component /libavcodec/jpeg2000dec.c.(CVE-2025-22921)

FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.

Security Fix(es):

A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file.(CVE-2020-21697)

Buffer Overflow vulnerability in FFmpeg 4.2 at convolution_y_10bit in libavfilter/vf_vmafmotion.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22019)

Buffer Overflow vulnerability in FFmpeg 4.2 in the build_diff_map function in libavfilter/vf_fieldmatch.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22020)

Buffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in libavfilter/vf_yadif.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22021)

Buffer Overflow vulnerability exists in FFmpeg 4.2 in the config_input function at libavfilter/af_tremolo.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22026)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in avcodec_alloc_context3 at options.c.(CVE-2020-22037)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c.(CVE-2020-22038)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the inavi_add_ientry function.(CVE-2020-22039)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak at the fifo_alloc_common function in libavutil/fifo.c.(CVE-2020-22043)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the url_open_dyn_buf_internal function in libavformat/aviobuf.c.(CVE-2020-22044)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the filter_frame function in vf_tile.c.(CVE-2020-22051)

Integer Overflow vulnerability in function filter16_roberts in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts.(CVE-2021-38090)

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.(CVE-2025-22919)

FFmpeg git-master,N-113007-g8d24a28d06 was discovered to contain a segmentation violation via the component /libavcodec/jpeg2000dec.c.(CVE-2025-22921)

FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.

Security Fix(es):

A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file.(CVE-2020-21697)

Buffer Overflow vulnerability in FFmpeg 4.2 at convolution_y_10bit in libavfilter/vf_vmafmotion.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22019)

Buffer Overflow vulnerability in FFmpeg 4.2 in the build_diff_map function in libavfilter/vf_fieldmatch.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22020)

Buffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in libavfilter/vf_yadif.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22021)

Buffer Overflow vulnerability exists in FFmpeg 4.2 in the config_input function at libavfilter/af_tremolo.c, which could let a remote malicious user cause a Denial of Service.(CVE-2020-22026)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in avcodec_alloc_context3 at options.c.(CVE-2020-22037)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c.(CVE-2020-22038)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the inavi_add_ientry function.(CVE-2020-22039)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak at the fifo_alloc_common function in libavutil/fifo.c.(CVE-2020-22043)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the url_open_dyn_buf_internal function in libavformat/aviobuf.c.(CVE-2020-22044)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the filter_frame function in vf_tile.c.(CVE-2020-22051)

Integer Overflow vulnerability in function filter16_roberts in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts.(CVE-2021-38090)

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.(CVE-2025-22919)

FFmpeg git-master,N-113007-g8d24a28d06 was discovered to contain a segmentation violation via the component /libavcodec/jpeg2000dec.c.(CVE-2025-22921)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c.

FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/aacpsy.c, which allows a remote malicious user to cause a Denial of Service. (CVE-2020-20446)

FFmpeg 4.2 is affected by null pointer dereference passed as argument to libavformat/aviobuf.c, which could cause a Denial of Service. (CVE-2020-20450)

FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/aaccoder, which allows a remote malicious user to cause a Denial of Service. (CVE-2020-20453)

Buffer Overflow vulnerability exists in FFmpeg 4.1 via apng_do_inverse_blend in libavcodec/pngenc.c, which could let a remote malicious user cause a Denial of Service. (CVE-2020-21041)

Buffer Overflow vulnerability in FFmpeg 4.2 in mov_write_video_tag due to the out of bounds in libavformat/movenc.c, which could let a remote malicious user obtain sensitive information, cause a Denial of Service, or execute arbitrary code. (CVE-2020-22015)

Buffer Overflow vulnerability in FFmpeg 4.2 at convolution_y_10bit in libavfilter/vf_vmafmotion.c, which could let a remote malicious user cause a Denial of Service. (CVE-2020-22019)

Buffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in libavfilter/vf_yadif.c, which could let a remote malicious user cause a Denial of Service. (CVE-2020-22021)

A heap-based Buffer Overflow Vulnerability exists FFmpeg 4.2 at libavfilter/vf_vmafmotion.c in convolution_y_8bit, which could let a remote malicious user cause a Denial of Service. (CVE-2020-22033)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in avcodec_alloc_context3 at options.c. (CVE-2020-22037)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c. (CVE-2020-22038)

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak is affected by: memory leak in the link_filter_inouts function in libavfilter/graphparser.c. (CVE-2020-22042)

libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init_vlc function, a similar issue to CVE-2013-0868. (CVE-2021-38114)

adts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check the init_get_bits return value, which is a necessary step because the second argument to init_get_bits can be crafted. (CVE-2021-38171)

FFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers from a an assertion failure at src/libavutil/mathematics.c. (CVE-2021-38291)

This update for ffmpeg fixes the following issues:

• CVE-2020-13904: Fixed use-after-free via a crafted EXTINF duration in an m3u8 file (bsc#1172640).
• CVE-2020-21041: Fixed buffer overflow vulnerability via apng_do_inverse_blend in libavcodec/pngenc.c (bsc#1186406).
• CVE-2019-17539: Fixed NULL pointer dereference in avcodec_open2 in libavcodec/utils.c (bsc# 1154065).
• CVE-2020-22026: Fixed buffer overflow vulnerability in config_input() at libavfilter/af_tremolo.c (bsc#1186583).
• CVE-2020-22021: Fixed buffer overflow vulnerability in filter_edges function in libavfilter/vf_yadif.c (bsc#1186586).
• CVE-2020-22020: Fixed buffer overflow vulnerability in build_diff_map() in libavfilter/vf_fieldmatch.c (bsc#1186587).
• CVE-2020-22015: Fixed buffer overflow vulnerability in mov_write_video_tag() due to the out of bounds in libavformat/movenc.c (bsc#1186596).
• CVE-2020-22016: Fixed a heap-based Buffer Overflow vulnerability at libavcodec/get_bits.h when writing .mov files (bsc#1186598).
• CVE-2020-22017: Fixed a heap-based Buffer Overflow vulnerability in ff_fill_rectangle() in libavfilter/drawutils.c (bsc#1186600).
• CVE-2020-22022: Fixed a heap-based Buffer Overflow vulnerability in filter_frame at libavfilter/vf_fieldorder.c (bsc#1186603).
• CVE-2020-22023: Fixed a heap-based Buffer Overflow vulnerability in filter_frame at libavfilter/vf_bitplanenoise.c (bsc#1186604)
• CVE-2020-22025: Fixed a heap-based Buffer Overflow vulnerability in gaussian_blur at libavfilter/vf_edgedetect.c (bsc#1186605).
• CVE-2020-22031: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_w3fdif.c in filter16_complex_low() (bsc#1186613).
• CVE-2020-22032: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_edgedetect.c in gaussian_blur() (bsc#1186614).
• CVE-2020-22034: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_floodfill.c (bsc#1186616).
• CVE-2020-20451: Fixed denial of service issue due to resource management errors via fftools/cmdutils.c (bsc#1186658).
• CVE-2020-20448: Fixed divide by zero issue via libavcodec/ratecontrol.c (bsc#1186660).
• CVE-2020-22038: Fixed denial of service vulnerability due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c (bsc#1186757).
• CVE-2020-22039: Fixed denial of service vulnerability due to a memory leak in the inavi_add_ientry function (bsc#1186758).
• CVE-2020-22043: Fixed denial of service vulnerability due to a memory leak at the fifo_alloc_common function in libavutil/fifo.c (bsc#1186762).
• CVE-2020-22044: Fixed denial of service vulnerability due to a memory leak in the url_open_dyn_buf_internal function in libavformat/aviobuf.c (bsc#1186763).
• CVE-2020-22033,CVE-2020-22019: Fixed a heap-based Buffer Overflow Vulnerability at libavfilter/vf_vmafmotion.c in convolution_y_8bit() and in convolution_y_10bit() in libavfilter/vf_vmafmotion.c (bsc#1186615, bsc#1186597).

This update for ffmpeg fixes the following issues:

• CVE-2020-13904: Fixed use-after-free via a crafted EXTINF duration in an m3u8 file (bsc#1172640).
• CVE-2020-21041: Fixed buffer overflow vulnerability via apng_do_inverse_blend in libavcodec/pngenc.c (bsc#1186406).
• CVE-2019-17539: Fixed NULL pointer dereference in avcodec_open2 in libavcodec/utils.c (bsc# 1154065).
• CVE-2020-22026: Fixed buffer overflow vulnerability in config_input() at libavfilter/af_tremolo.c (bsc#1186583).
• CVE-2020-22021: Fixed buffer overflow vulnerability in filter_edges function in libavfilter/vf_yadif.c (bsc#1186586).
• CVE-2020-22020: Fixed buffer overflow vulnerability in build_diff_map() in libavfilter/vf_fieldmatch.c (bsc#1186587).
• CVE-2020-22015: Fixed buffer overflow vulnerability in mov_write_video_tag() due to the out of bounds in libavformat/movenc.c (bsc#1186596).
• CVE-2020-22016: Fixed a heap-based Buffer Overflow vulnerability at libavcodec/get_bits.h when writing .mov files (bsc#1186598).
• CVE-2020-22017: Fixed a heap-based Buffer Overflow vulnerability in ff_fill_rectangle() in libavfilter/drawutils.c (bsc#1186600).
• CVE-2020-22022: Fixed a heap-based Buffer Overflow vulnerability in filter_frame at libavfilter/vf_fieldorder.c (bsc#1186603).
• CVE-2020-22023: Fixed a heap-based Buffer Overflow vulnerability in filter_frame at libavfilter/vf_bitplanenoise.c (bsc#1186604)
• CVE-2020-22025: Fixed a heap-based Buffer Overflow vulnerability in gaussian_blur at libavfilter/vf_edgedetect.c (bsc#1186605).
• CVE-2020-22031: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_w3fdif.c in filter16_complex_low() (bsc#1186613).
• CVE-2020-22032: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_edgedetect.c in gaussian_blur() (bsc#1186614).
• CVE-2020-22034: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_floodfill.c (bsc#1186616).
• CVE-2020-20451: Fixed denial of service issue due to resource management errors via fftools/cmdutils.c (bsc#1186658).
• CVE-2020-20448: Fixed divide by zero issue via libavcodec/ratecontrol.c (bsc#1186660).
• CVE-2020-22038: Fixed denial of service vulnerability due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c (bsc#1186757).
• CVE-2020-22039: Fixed denial of service vulnerability due to a memory leak in the inavi_add_ientry function (bsc#1186758).
• CVE-2020-22043: Fixed denial of service vulnerability due to a memory leak at the fifo_alloc_common function in libavutil/fifo.c (bsc#1186762).
• CVE-2020-22044: Fixed denial of service vulnerability due to a memory leak in the url_open_dyn_buf_internal function in libavformat/aviobuf.c (bsc#1186763).
• CVE-2020-22033,CVE-2020-22019: Fixed a heap-based Buffer Overflow Vulnerability at libavfilter/vf_vmafmotion.c in convolution_y_8bit() and in convolution_y_10bit() in libavfilter/vf_vmafmotion.c (bsc#1186615, bsc#1186597).

This update for ffmpeg fixes the following issues:

• CVE-2019-9721: Fixed a denial of service in the subtitle decoder in handle_open_brace from libavcodec/htmlsubtitles.c (bsc#1129714).
• CVE-2020-22046: Fixed a denial of service vulnerability due to a memory leak in the avpriv_float_dsp_allocl function in libavutil/float_dsp.c (bsc#1186849).
• CVE-2020-22048: Fixed a denial of service vulnerability due to a memory leak in the ff_frame_pool_get function in framepool.c (bsc#1186859).
• CVE-2020-22049: Fixed a denial of service vulnerability caused by a memory leak in the wtvfile_open_sector function in wtvdec.c (bsc#1186861).
• CVE-2020-22054: Fixed a denial of service vulnerability due to a memory leak in the av_dict_set function in dict.c (bsc#1186863).
• CVE-2020-13904: Fixed use-after-free via a crafted EXTINF duration in an m3u8 file (bsc#1172640).
• CVE-2020-21041: Fixed buffer overflow vulnerability via apng_do_inverse_blend in libavcodec/pngenc.c (bsc#1186406).
• CVE-2019-17539: Fixed NULL pointer dereference in avcodec_open2 in libavcodec/utils.c (bsc# 1154065).
• CVE-2020-22026: Fixed buffer overflow vulnerability in config_input() at libavfilter/af_tremolo.c (bsc#1186583).
• CVE-2020-22021: Fixed buffer overflow vulnerability in filter_edges function in libavfilter/vf_yadif.c (bsc#1186586).
• CVE-2020-22020: Fixed buffer overflow vulnerability in build_diff_map() in libavfilter/vf_fieldmatch.c (bsc#1186587).
• CVE-2020-22015: Fixed buffer overflow vulnerability in mov_write_video_tag() due to the out of bounds in libavformat/movenc.c (bsc#1186596).
• CVE-2020-22016: Fixed a heap-based Buffer Overflow vulnerability at libavcodec/get_bits.h when writing .mov files (bsc#1186598).
• CVE-2020-22017: Fixed a heap-based Buffer Overflow vulnerability in ff_fill_rectangle() in libavfilter/drawutils.c (bsc#1186600).
• CVE-2020-22022: Fixed a heap-based Buffer Overflow vulnerability in filter_frame at libavfilter/vf_fieldorder.c (bsc#1186603).
• CVE-2020-22023: Fixed a heap-based Buffer Overflow vulnerability in filter_frame at libavfilter/vf_bitplanenoise.c (bsc#1186604)
• CVE-2020-22025: Fixed a heap-based Buffer Overflow vulnerability in gaussian_blur at libavfilter/vf_edgedetect.c (bsc#1186605).
• CVE-2020-22031: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_w3fdif.c in filter16_complex_low() (bsc#1186613).
• CVE-2020-22032: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_edgedetect.c in gaussian_blur() (bsc#1186614).
• CVE-2020-22034: Fixed a heap-based Buffer Overflow vulnerability at libavfilter/vf_floodfill.c (bsc#1186616).
• CVE-2020-20451: Fixed denial of service issue due to resource management errors via fftools/cmdutils.c (bsc#1186658).
• CVE-2020-20448: Fixed divide by zero issue via libavcodec/ratecontrol.c (bsc#1186660).
• CVE-2020-22038: Fixed denial of service vulnerability due to a memory leak in the ff_v4l2_m2m_create_context function in v4l2_m2m.c (bsc#1186757).
• CVE-2020-22039: Fixed denial of service vulnerability due to a memory leak in the inavi_add_ientry function (bsc#1186758).
• CVE-2020-22043: Fixed denial of service vulnerability due to a memory leak at the fifo_alloc_common function in libavutil/fifo.c (bsc#1186762).
• CVE-2020-22044: Fixed denial of service vulnerability due to a memory leak in the url_open_dyn_buf_internal function in libavformat/aviobuf.c (bsc#1186763).
• CVE-2020-22033,CVE-2020-22019: Fixed a heap-based Buffer Overflow Vulnerability at libavfilter/vf_vmafmotion.c in convolution_y_8bit() and in convolution_y_10bit() in libavfilter/vf_vmafmotion.c (bsc#1186615, bsc#1186597).
• CVE-2020-21688: Fixed a heap-use-after-free in the av_freep function in libavutil/mem.c (bsc#1189348).
• CVE-2020-21697: Fixed a heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c (bsc#1189350).
• CVE-2021-38114: Fixed a not checked return value of the init_vlc function (bsc#1189142).

It was discovered that FFmpeg incorrectly managed memory resulting in a memory leak. An attacker could possibly use this issue to cause a denial of service via application crash. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-22038)

It was discovered that FFmpeg incorrectly handled certain input files, leading to an integer overflow. An attacker could possibly use this issue to cause a denial of service via application crash. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-20898, CVE-2021-38090, CVE-2021-38091, CVE-2021-38092, CVE-2021-38093, CVE-2021-38094)

It was discovered that FFmpeg incorrectly managed memory, resulting in a memory leak. If a user or automated system were tricked into processing a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. (CVE-2022-48434)