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.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2929-1 advisory.

    - 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).

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

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

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a
    crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a
    complex format argument to sscanf. (CVE-2019-9718)

  - 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)

  - libavcodec/hevcdec.c in FFmpeg 3.4 and 4.1.2 mishandles detection of duplicate first slices, which allows
    remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or
    possibly have unspecified other impact via crafted HEVC data. (CVE-2019-11338)

  - The studio profile decoder in libavcodec/mpeg4videodec.c in FFmpeg 4.0 before 4.0.4 and 4.1 before 4.1.2
    allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified
    other impact via crafted MPEG-4 video data. (CVE-2019-11339)

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - The flv_write_packet function in libavformat/flvenc.c in FFmpeg through 2.8 does not check for an empty
    audio packet, leading to an assertion failure. (CVE-2018-15822)

  - In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a
    crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a
    complex format argument to sscanf. (CVE-2019-9718)

  - 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)

  - The studio profile decoder in libavcodec/mpeg4videodec.c in FFmpeg 4.0 before 4.0.4 and 4.1 before 4.1.2
    allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified
    other impact via crafted MPEG-4 video data. (CVE-2019-11339)

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - The flv_write_packet function in libavformat/flvenc.c in FFmpeg through 2.8 does not check for an empty
    audio packet, leading to an assertion failure. (CVE-2018-15822)

  - In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a
    crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a
    complex format argument to sscanf. (CVE-2019-9718)

  - 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)

  - libavcodec/hevcdec.c in FFmpeg 3.4 and 4.1.2 mishandles detection of duplicate first slices, which allows
    remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or
    possibly have unspecified other impact via crafted HEVC data. (CVE-2019-11338)

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.

    - CVE-2019-9721: Fix denial of service in the subtitle decoder in handle_open_brace from     libavcodec/htmlsubtitles.c (bsc#1129714).
    - CVE-2020-22046: Fix 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 (bsc#1186849).
    - CVE-2020-22048: Fix 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 (bsc#1186859).
    - CVE-2020-22049: Fix a denial of service vulnerability exists in FFmpeg 4.2 due to a memory leak in the     wtvfile_open_sector function in wtvdec.c (bsc#1186861).
    - CVE-2020-22054: Fix a denial of service vulnerability exists in FFmpeg 4.2 due to a memory leak in the     av_dict_set function in dict.c (bsc#1186863).
    - 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).

Tenable has extracted the preceding description block directly from the SUSE 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 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.

The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3967-1 advisory.

    It was discovered that FFmpeg contained multiple security issues when handling certain multimedia files.
    If a user were tricked into opening a crafted multimedia file, an attacker could cause a denial of service     via application crash.

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.

ID	Name	Product	Family	Severity
322833	SUSE SLES15: libavcodec-devel / libavcodec57 / libavcodec57-32bit / etc (SUSE-SU-2021:2929-1)	Nessus	SuSE Local Security Checks	critical
426442	Alpine: ffmpeg4: security update to 4.1.3-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
426442	Alpine: ffmpeg4: security update to 4.1.3-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
404314	Alpine: multiple ffmpeg packages: security update to 4.1.3-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
404314	Alpine: multiple ffmpeg packages: security update to 4.1.3-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
404310	Alpine: multiple ffmpeg packages: security update to 4.0.4-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
404310	Alpine: multiple ffmpeg packages: security update to 4.0.4-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
404306	Alpine: multiple ffmpeg packages: security update to 3.4.6-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
404306	Alpine: multiple ffmpeg packages: security update to 3.4.6-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
153011	SUSE SLED15: ffmpeg / libavcodec-devel / libavcodec57 / libavdevice57 / etc (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
124678	Ubuntu 18.04 LTS : FFmpeg vulnerabilities (USN-3967-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2019-9721

medium

Tenable Plugins

critical

high

high

high

high

high

high

high

high

high

high

high