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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-936088 advisory.

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

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5167-1 advisory.

    It was discovered that FFmpeg did not properly verify certain input when processing video and audio files.
    An attacker could possibly use this to send specially crafted input to the application, force a division     by zero, and cause a denial of service (application crash). (CVE-2020-20445, CVE-2020-20446,     CVE-2020-20453, CVE-2020-20892)

    It was discovered that FFmpeg did not properly perform certain bit shift and memory operations. An     attacker could possibly use this issue to expose sensitive information. (CVE-2020-20902)

    It was discovered that FFmpeg did not properly perform memory management operations in various of its     functions. An attacker could possibly use this issue to send specially crafted input to the application     and cause a denial of service (application crash) or execute arbitrary code. (CVE-2020-21041,     CVE-2020-20451, CVE-2020-21688, CVE-2020-21697, CVE-2020-22020, CVE-2020-22021, CVE-2020-22022,     CVE-2020-22025, CVE-2020-22031, CVE-2020-22032, CVE-2020-22037, CVE-2020-22040, CVE-2020-22041,     CVE-2020-22042, CVE-2020-22044)

    It was discovered that FFmpeg did not properly perform memory management operations in various of its     functions. An attacker could possibly use this issue to send specially crafted input to the application     and cause a denial of service (application crash) or execute arbitrary code. (CVE-2020-22016,     CVE-2020-22046, CVE-2020-22049, CVE-2020-22054)

    It was discovered that FFmpeg did not properly perform memory management operations in various of its     functions. An attacker could possibly use this issue to send specially crafted input to the application     and cause a denial of service (application crash) or execute arbitrary code. (CVE-2020-35965)

    It was discovered that FFmpeg did not properly handle data assigned to the tty demuxer. An attacker could     possibly use this issue to send specially crafted input to the application and expose sensitive     information. (CVE-2021-3566)

    It was discovered that FFmpeg did not perform checks on function return values when encoding and     formatting input video and audio files. An attacker could possibly use this issue to cause a denial of     service (application crash) or execute arbitrary code. (CVE-2021-38114, CVE-2021-38171)

    It was discovered that FFmpeg did not properly sanitize function returned data when calculating frame     duration values. An attacker could possibly use this issue to cause an assertion failure and then cause a     denial of service (application crash). (CVE-2021-38291)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2818 advisory.

  - FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/lpc.h, which allows a remote malicious     user to cause a Denial of Service. (CVE-2020-20445)

  - 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)

  - Denial of Service issue in FFmpeg 4.2 due to resource management errors via fftools/cmdutils.c.
    (CVE-2020-20451)

  - 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)

  - 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     av_buffersrc_add_frame_flags function in buffersrc. (CVE-2020-22041)

  - 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 avpriv_float_dsp_allocl     function in libavutil/float_dsp.c. (CVE-2020-22046)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_frame_pool_get     function in framepool.c. (CVE-2020-22048)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the wtvfile_open_sector     function in wtvdec.c. (CVE-2020-22049)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the av_dict_set function in     dict.c. (CVE-2020-22054)

  - 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)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-4990 advisory.

  - FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/lpc.h, which allows a remote malicious     user to cause a Denial of Service. (CVE-2020-20445)

  - 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 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)

  - A heap-based Buffer Overflow vulnerability in FFmpeg 4.2 at libavcodec/get_bits.h when writing .mov files,     which might lead to memory corruption and other potential consequences. (CVE-2020-22016)

  - A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at ff_fill_rectangle in     libavfilter/drawutils.c, which might lead to memory corruption and other potential consequences.
    (CVE-2020-22017)

  - 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)

  - A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_frame at     libavfilter/vf_fieldorder.c, which might lead to memory corruption and other potential consequences.
    (CVE-2020-22022)

  - A heap-based Buffer Overflow vulnerabililty exists in FFmpeg 4.2 in filter_frame at     libavfilter/vf_bitplanenoise.c, which might lead to memory corruption and other potential consequences.
    (CVE-2020-22023)

  - A heap-based Buffer Overflow vulnerability exists in gaussian_blur at libavfilter/vf_edgedetect.c, which     might lead to memory corruption and other potential consequences. (CVE-2020-22025)

  - 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 heap-based Buffer Overflow vulnerability exits in FFmpeg 4.2 in deflate16 at libavfilter/vf_neighbor.c,     which might lead to memory corruption and other potential consequences. (CVE-2020-22027)

  - Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_vertically_8 at libavfilter/vf_avgblur.c,     which could cause a remote Denial of Service. (CVE-2020-22028)

  - A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/vf_colorconstancy.c: in     slice_get_derivative, which crossfade_samples_fltp, which might lead to memory corruption and other     potential consequences. (CVE-2020-22029)

  - A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/af_afade.c in     crossfade_samples_fltp, which might lead to memory corruption and other potential consequences.
    (CVE-2020-22030)

  - A Heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/vf_w3fdif.c in     filter16_complex_low, which might lead to memory corruption and other potential consequences.
    (CVE-2020-22031)

  - A heap-based Buffer Overflow vulnerability exists FFmpeg 4.2 at libavfilter/vf_edgedetect.c in     gaussian_blur, which might lead to memory corruption and other potential consequences. (CVE-2020-22032)

  - 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 heap-based Buffer Overflow vulnerability exists FFmpeg 4.2 at libavfilter/vf_floodfill.c, which might     lead to memory corruption and other potential consequences. (CVE-2020-22034)

  - A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in get_block_row at libavfilter/vf_bm3d.c,     which might lead to memory corruption and other potential consequences. (CVE-2020-22035)

  - A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_intra at libavfilter/vf_bwdif.c,     which might lead to memory corruption and other potential consequences. (CVE-2020-22036)

  - 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 wtvfile_open_sector     function in wtvdec.c. (CVE-2020-22049)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the av_dict_set function in     dict.c. (CVE-2020-22054)

  - decode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in     calculations of when to perform memset zero operations. (CVE-2020-35965)

  - 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)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2919-1 advisory.

  - A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a     crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c has a     complex format argument to sscanf. (CVE-2019-9721)

  - A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to     execute arbitrary code. (CVE-2020-21688)

  - 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)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the avpriv_float_dsp_allocl     function in libavutil/float_dsp.c. (CVE-2020-22046)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_frame_pool_get     function in framepool.c. (CVE-2020-22048)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the wtvfile_open_sector     function in wtvdec.c. (CVE-2020-22049)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the av_dict_set function in     dict.c. (CVE-2020-22054)

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:2919-1 advisory.

  - A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a     crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c has a     complex format argument to sscanf. (CVE-2019-9721)

  - A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to     execute arbitrary code. (CVE-2020-21688)

  - 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)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the avpriv_float_dsp_allocl     function in libavutil/float_dsp.c. (CVE-2020-22046)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_frame_pool_get     function in framepool.c. (CVE-2020-22048)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the wtvfile_open_sector     function in wtvdec.c. (CVE-2020-22049)

  - A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the av_dict_set function in     dict.c. (CVE-2020-22054)

  - 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)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
267504	Unity Linux 20.1070e Security Update: ffmpeg (UTSA-2025-936088)	Nessus	Unity Linux Local Security Checks	medium
183614	Ubuntu 16.04 ESM : FFmpeg vulnerabilities (USN-5167-1)	Nessus	Ubuntu Local Security Checks	critical
155346	Debian DLA-2818-1 : ffmpeg - LTS security update	Nessus	Debian Local Security Checks	critical
154263	Debian DSA-4990-1 : ffmpeg - security update	Nessus	Debian Local Security Checks	critical
153011	SUSE SLED15 / SLES15 Security Update : ffmpeg (SUSE-SU-2021:2919-1)	Nessus	SuSE Local Security Checks	high
153007	openSUSE 15 Security Update : ffmpeg (openSUSE-SU-2021:2919-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2020-22054

medium

Tenable Plugins

medium

critical

critical

critical

high

high