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neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image","status":"published","published":"2021-04-23T17:22:15Z","modified":"2025-10-21T23:25:48.455Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9350","description":"Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image","status":"published","published":"2021-04-23T17:22:15Z","modified":"2025-10-21T23:25:48Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","level":"medium"}],"exploited_since":"2021-11-17","updated_at":"2026-11-02T20:31:25.308373Z"}],"ghsa":[{"id":"GHSA-9377-7hwr-p4w6","title":"Improper neutralization of user 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instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2021-22204","description":"Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image","status":"published","published":"2021-04-23T18:15:08.127Z","modified":"2026-06-17T03:36:47.89Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:06:52.03307Z"}],"osv":[{"id":"ALPINE-CVE-2021-22204","description":"Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image","status":"published","published":"2021-04-23T18:15:08.127Z","modified":"2026-11-03T06:32:32.005186465Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T07:17:41.158523Z"},{"id":"CVE-2021-22204","description":"Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image","status":"published","published":"2021-04-23T18:15:08.127Z","modified":"2026-10-20T10:54:31.013856575Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"DEBIAN-CVE-2021-22204","description":"Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image","status":"published","published":"2021-04-23T18:15:08.127Z","modified":"2026-10-23T18:03:11.899261147Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.637046Z"},{"id":"UBUNTU-CVE-2021-22204","description":"Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image","status":"published","published":"2021-04-23T18:15:00Z","modified":"2026-02-04T04:14:33.451969Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:54:26.29421Z"},{"id":"DLA-2663-1","title":"libimage-exiftool-perl - security update","status":"published","published":"2021-05-16T00:00:00Z","modified":"2026-03-09T01:22:20.933649Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DSA-4910-1","title":"libimage-exiftool-perl - security update","status":"published","published":"2021-05-02T00:00:00Z","modified":"2026-03-09T02:09:28.085913Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"MGASA-2021-0259","title":"Updated perl-Image-ExifTool package fixes a security vulnerability","description":"Improper neutralization of user data in the DjVu file format in ExifTool \nversions 7.44 and up allows arbitrary code execution when parsing the \nmalicious image (CVE-2021-22204).\n","status":"published","published":"2021-06-16T20:22:25Z","modified":"2026-04-16T04:41:17.062662534Z","updated_at":"2026-11-02T15:49:41.509337Z"},{"id":"openSUSE-SU-2021:0707-1","title":"Security update for perl-Image-ExifTool","description":"This update for perl-Image-ExifTool fixes the following issues:\n\nUpdate to version 12.25 fixes (boo#1185547 CVE-2021-22204)\n\n* JPEG XL support is now official\n* Added read support for Medical Research Council (MRC) image\n  files\n* Added ability to write a number of 3gp tags in video files\n* Added a new Sony PictureProfile value (thanks Jos Roost)\n* Added a new Sony LensType (thanks LibRaw)\n* Added a new Nikon LensID (thanks Niels Kristian Bech Jensen)\n* Added a new Canon LensType\n* Decode more GPS information from Blackvue dashcam videos\n* Decode a couple of new NikonSettings tags (thanks Warren\n  Hatch)\n* Decode a few new RIFF tags\n* Improved Validate option to add minor warning if standard\n  XMP is missing xpacket wrapper\n* Avoid decoding some large arrays in DNG images to improve\n  performance unless the -m option is used\n* Patched bug that could give runtime warning when trying to\n  write an empty XMP structure\n* Fixed decoding of ImageWidth/Height for JPEG XL images\n* Fixed problem were Microsoft Xtra tags couldn't be deleted\n\nversion 12.24:\n\n* Added a new PhaseOne RawFormat value (thanks LibRaw)\n* Decode a new Sony tag (thanks Jos Roost)\n* Decode a few new Panasonic and FujiFilm tags (thanks LibRaw\n  and Greybeard)\n* Patched security vulnerability in DjVu reader\n* Updated acdsee.config in distribution (thanks StarGeek)\n* Recognize AutoCAD DXF files\n* More work on experimental JUMBF read support\n* More work on experimental JPEG XL read/write support\n\nversion 12.23:\n\n* Added support for Olympus ORI files\n* Added experimental read/write support for JPEG XL images\n* Added experimental read support for JUMBF metadata in JPEG\n  and Jpeg2000 images\n* Added built-in support for parsing GPS track from Denver\n  ACG-8050 videos\n  with the -ee option\n* Added a some new Sony lenses (thanks Jos Roost and LibRaw)\n* Changed priority of Samsung trailer tags so the first\n  DepthMapImage takes\n  precedence when -a is not used\n* Improved identification of M4A audio files\n* Patched to avoid escaping ',' in 'Binary data' message when\n  -struct is used\n* Removed Unknown flag from MXF VideoCodingSchemeID tag\n* Fixed -forcewrite=EXIF to apply to EXIF in binary header of\n  EPS files\n* API Changes:\n  + Added BlockExtract option\n\nversion 12.22:\n\n* Added a few new Sony LensTypes and a new SonyModelID (thanks\n  Jos Roost and LibRaw)\n* Added Extra BaseName tag\n* Added a new CanonModelID (thanks LibRaw)\n* Decode timed GPS from unlisted programs in M2TS videos with\n  the -ee3 option\n* Decode more Sony rtmd tags\n* Decode some tags for the Sony ILME-FX3 (thanks Jos Roost)\n* Allow negative values to be written to XMP-aux:LensID\n* Recognize HEVC video program in M2TS files\n* Enhanced -b option so --b suppresses tags with binary data\n* Improved flexibility when writing GPS coordinates:\n  + Now pulls latitude and longitude from a combined\n    GPSCoordinates string\n  + Recognizes the full word 'South' and 'West' to write\n    negative coordinates\n* Improved warning when trying to write an integer QuickTime\n  date/time tag and Time::Local is not available\n* Convert GPSSpeed from mph to km/h in timed GPS from Garmin\n  MP4 videos\n\nversion 12.21:\n\n* Added a few new iOS QuickTime tags\n* Decode a couple more Sony rtmd tags\n* Patch to avoid possible 'Use of uninitialized value' warning\n  when attempting to write QuickTime date/time tags with an\n  invalid value\n* Fixed problem writing Microsoft Xtra tags\n* Fixed Windows daylight savings time patch for file times\n  that was broken in 12.19 (however directory times will not\n  yet handle DST properly)\n\nversion 12.20:\n\n* Added ability to write some Microsoft Xtra tags in MOV/MP4\n  videos\n* Added two new Canon LensType values (thanks Norbert Wasser)\n* Added a new Nikon LensID\n* Fixed problem reading FITS comments that start before column\n  11\n\nversion 12.19:\n\n* Added -list_dir option\n* Added the 'ls-l' Shortcut tag\n* Extract Comment and History from FITS files\n* Enhanced FilePermissions to include device type (similar to\n  'ls -l')\n* Changed the name of Apple ContentIdentifier tag to\n  MediaGroupUUID (thanks Neal Krawetz)\n* Fixed a potential 'substr outside of string' runtime error\n  when reading corrupted EXIF\n* Fixed edge case where NikonScanIFD may not be copied\n  properly when copying MakerNotes to another file\n* API Changes:\n  + Added ability to read/write System tags of directories\n  + Enhanced GetAllGroups() to support family 7 and take\n    optional ExifTool reference\n  + Changed QuickTimeHandler option default to 1\n\nversion 12.18:\n\n* Added a new SonyModelID\n* Decode a number of Sony tags for the ILCE-1 (thanks Jos\n  Roost)\n* Decode a couple of new Canon tags (thanks LibRaw)\n* Patched to read differently formatted UserData:Keywords as\n  written by iPhone\n* Patched to tolerate out-of-order Nikon MakerNote IFD entries\n  when obtaining tags necessary for decryption\n* Fixed a few possible Condition warnings for some\n  NikonSettings tags\n\nversion 12.17:\n\n* Added a new Canon FocusMode value\n* Added a new FujiFilm FilmMode value\n* Added a number of new XMP-crs tags (thanks Herb)\n* Decode a new H264 MDPM tag\n* Allow non-conforming lower-case XMP boolean 'true' and\n  'false' values to be written, but only when print conversion\n  is disabled\n* Improved Validate option to warn about non-capitalized\n  boolean XMP values\n* Improved logic for setting GPSLatitude/LongitudeRef values\n  when writing\n* Changed -json and -php options so the -a option is implied\n  even without the -g option\n* Avoid extracting audio/video data from AVI videos when -ee\n  -u is used\n* Patched decoding of Canon ContinuousShootingSpeed for newer\n  firmware versions of the EOS-1DXmkIII\n* Re-worked LensID patch of version 12.00 (github issue #51)\n* Fixed a few typos in newly-added NikonSettings tags (thanks\n  Herb)\n* Fixed problem where group could not be specified for\n  PNG-pHYs tags when writing\nversion 12.16:\n* Extract another form of video subtitle text\n* Enhanced -ee option with -ee2 and -ee3 to allow parsing of\n  the H264 video stream in MP4 files\n* Changed a Nikon FlashMode value\n* Fixed problem that caused a failed DPX test on Strawberry\n  Perl\n* API Changes:\n  + Enhanced ExtractEmbedded option\n\nversion 12.15:\n\n* Added a couple of new Sony LensType values (thanks LibRaw\n  and Jos Roost)\n* Added a new Nikon FlashMode value (thanks Mike)\n* Decode NikonSettings (thanks Warren Hatch)\n* Decode thermal information from DJI RJPEG images\n* Fixed extra newline in -echo3 and -echo4 outputs added in\n  version 12.10\n* Fixed out-of-memory problem when writing some very large PNG\n  files under Windows\n\nversion 12.14:\n\n* Added support for 2 more types of timed GPS in video files\n  (that makes 49 different formats now supported)\n* Added validity check for PDF trailer dictionary Size\n* Added a new Pentax LensType\n* Extract metadata from Jpeg2000 Association box\n* Changed -g:XX:YY and -G:XX:YY options to show empty strings\n  for non-existent groups\n* Patched to issue warning and avoid writing date/time values\n  with a zero month or day number\n* Patched to avoid runtime warnings if trying to set FileName\n  to an empty string\n* Fixed issue that could cause GPS test number 12 to fail on\n  some systems\n* Fixed problem extracting XML as a block from Jpeg2000\n  images, and extract XML tags in the XML group instead of XMP\n- Update URL\n\nupdate to 12.13:\n\n* Add time zone automatically to most string-based QuickTime date/time tags\n  when writing unless the PrintConv option is disabled\n* Added -i HIDDEN option to ignore files with names that start with '.'\n* Added a few new Nikon ShutterMode values (thanks Jan Skoda)\n* Added ability to write Google GCamera MicroVideo XMP tags\n* Decode a new Sony tag (thanks LibRaw)\n* Changed behaviour when writing only pseudo tags to return an error and avoid\n  writing any other tags if writing FileName fails\n* Print 'X image files read' message even if only 1 file is read when at least\n  one other file has failed the -if condition\n* Added ability to geotag from DJI CSV log files\n* Added a new CanonModelID\n* Added a couple of new Sony LensType values (thanks LibRaw)\n* Enhanced -csvDelim option to allow '\\t', '\\n', '\\r' and '\\\\'\n* Unescape '\\b' and '\\f' in imported JSON values\n* Fixed bug introduced in 12.10 which generated a 'Not an integer' warning\n  when attempting to shift some QuickTime date/time tags\n* Fixed shared-write permission problem with -@ argfile when using -stay_open\n  and a filename containing special characters on Windows\n* Added -csvDelim option\n* Added new Canon and Olympus LensType values (thanks LibRaw)\n* Added a warning if ICC_Profile is deleted from an image (github issue #63)\n* EndDir() function for -if option now works when -fileOrder is used\n* Changed FileSize conversion to use binary prefixes since that is how the\n  conversion is currently done (eg. MiB instead of MB)\n* Patched -csv option so columns aren't resorted when using -G option and one\n  of the tags is missing from a file\n* Fixed incompatiblity with Google Photos when writing UserData:GPSCoordinates\n  to MP4 videos\n* Fixed problem where the tags available in a -p format string were limited to\n  the same as the -if[NUM] option when NUM was specified\n* Fixed incorrect decoding of SourceFileIndex/SourceDirectoryIndex for Ricoh\n  models\n\nUpdate to 12.10\n\n* Added -validate test for proper TIFF magic number in\n  JPEG EXIF header\n* Added support for Nikon Z7 LensData version 0801\n* Added a new XMP-GPano tag\n* Decode ColorData for the Canon EOS 1DXmkIII\n* Decode more tags for the Sony ILCE-7SM3\n* Automatically apply QuickTimeUTC option for CR3 files\n* Improved decoding of XAttrMDLabel from MacOS files\n* Ignore time zones when writing date/time values and\n  using the -d option\n* Enhanced -echo3 and -echo4 options to allow exit status\n  to be returned\n* Changed -execute so the -q option no longer suppresses\n  the '{ready}' message when a synchronization number is used\n* Added ability to copy CanonMakerNotes from CR3 images\n  to other file types\n* Added read support for ON1 presets file (.ONP)\n* Added two new CanonModelID values\n* Added trailing '/' when writing QuickTime:GPSCoordinates\n* Added a number of new XMP-crs tags\n* Added a new Sony LensType (thanks Jos Roost)\n* Added a new Nikon Z lens (thanks LibRaw)\n* Added a new Canon LensType\n* Decode ColorData for Canon EOS R5/R6\n* Decode a couple of new HEIF tags\n* Decode FirmwareVersion for Canon M50\n* Improved decoding of Sony CreativeStyle tags\n* Improved parsing of Radiance files to recognize comments\n* Renamed GIF AspectRatio tag to PixelAspectRatio\n* Patched EndDir() feature so subdirectories are always\n  processed when -r is used (previously, EndDir() would\n  end processing of a directory completely)\n* Avoid loading GoPro module unnecessarily when reading MP4 videos\n  from some other cameras\n* Fixed problem with an incorrect naming of CodecID tags in some\n  MKV videos\n* Fixed verbose output to avoid 'adding' messages for\n  existing flattened XMP tags\n* Added a new Sony LensType\n* Recognize Mac OS X xattr files\n* Extract ThumbnailImage from MP4 videos of more dashcam models\n* Improved decoding of a number of Sony tags\n* Fixed problem where the special -if EndDir() function didn't\n  work properly for directories after the one in which\n  it was initially called\n* Patched to read DLL files which don't have a .rsrc section\n* Patched to support new IGC date format when geotagging\n* Patched to read DLL files with an invalid size in the header \n* Added support for GoPro .360 videos\n* Added some new Canon RF and Nikkor Z lenses\n* Added some new Sony LensType and CreativeStyle values\n  and decode some ILCE-7C tags\n* Added a number of new Olympus SceneMode values\n* Added a new Nikon LensID\n* Decode more timed metadata from Insta360 videos\n* Decode timed GPS from videos of more Garmin dashcam models\n* Decode a new GoPro video tag\n* Reformat time-only EventTime values when writing and prevent\n  arbitrary strings from being written\n* Patched to accept backslashes in SourceFile entries for -csv option\n\nupdate to 12.06\n\n* Added read support for Lyrics3 metadata (and fixed problem\n  where APE metadata may be ignored if Lyrics3 exists)\n* Added a new Panasonic VideoBurstMode value\n* Added a new Olympus MultipleExposureMode value\n* Added a new Nikon LensID\n* Added back conversions for XMP-dwc EventTime that were removed\n  in 12.04 with a patch to allow time-only values\n* Decode GIF AspectRatio\n* Decode Olympus FocusBracketStepSize\n* Extract PNG iDOT chunk in Binary format with the\n  name AppleDataOffsets\n* Process PNG images which do not start with mandatory\n  IHDR chunk\n* Added a new Panasonic SelfTimer value\n* Decode a few more DPX tags\n* Extract AIFF APPL tag as ApplicationData\n* Fixed bug writing QuickTime ItemList 'gnre' Genre values\n* Fixed an incorrect value for Panasonic VideoBurstResolution\n* Fixed problem when applying a time shift to some invalid\n  makernote date/time values\n\nupdate to 12.04:\n\n* See /usr/share/doc/packages/perl-Image-ExifTool/Change \n\nupdate to 11.50, see Image-ExifTool-11.50.tar.gz for details\n\nUpdate to version 11.30:\n\n* Add a new Sony/Minolta LensType.\n* Decode streaming metadata from TomTom Bandit Action Cam MP4\n  videos.\n* Decode Reconyx HF2 PRO maker notes.\n* Decode ColorData for some new Canon models.\n* Enhanced -geotag feature to set AmbientTemperature if\n  available.\n* Remove non-significant spaces from some DICOM values.\n* Fix possible ''x' outside of string' error when reading\n  corrupted EXIF.\n* Fix incorrect write group for GeoTIFF tags.\n\nUpdate to version 11.29\n\n* See /usr/share/doc/packages/perl-Image-ExifTool/Changes\n\nUpdate to version 11.27\n\n* See /usr/share/doc/packages/perl-Image-ExifTool/Changes\n\nUpdate to version 11.24\n\n* See /usr/share/doc/packages/perl-Image-ExifTool/Changes\n\nUpdate to version 11.11 (changes since 11.01):\n\n* See /usr/share/doc/packages/perl-Image-ExifTool/Changes\n\nUpdate to 11.01:\n\n* Added a new ProfileCMMType\n* Added a Validate warning about non-standard EXIF or XMP in\n  PNG images\n* Added a new Canon LensType\n* Decode a couple more PanasonicRaw tags\n* Patched to avoid adding tags to QuickTime videos with multiple\n  'mdat' atoms --\u003e avoids potential corruption of these videos!\n\nUpdate to 11.00:\n\n* Added read support for WTV and DVR-MS videos\n* Added print conversions for some ASF date/time tags\n* Added a new SonyModelID\n* Decode a new PanasonicRaw tag\n* Decode some new Sony RX100 VI tags\n* Made Padding and OffsetSchema tags 'unsafe' so they\n  aren't copied by default \n\n","status":"published","published":"2021-05-10T18:41:24Z","modified":"2026-02-04T03:27:03.269956Z","updated_at":"2026-11-02T16:58:31.879684Z"},{"id":"USN-4987-1","title":"libimage-exiftool-perl vulnerability","description":"It was discovered that ExifTool did not properly sanitize user data for the\nDjVu file format. An attacker could use this vulnerability to cause a DoS or\npossibly execute arbitrary code.\n","status":"published","published":"2021-06-10T20:27:47Z","modified":"2026-02-10T04:42:13Z","updated_at":"2026-11-02T16:58:15.159055Z"},{"id":"USN-4987-2","title":"libimage-exiftool-perl vulnerability","description":"\nUSN-4987-1 fixed a vulnerability in ExifTool. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that ExifTool did not properly sanitize user data for the\n DjVu file format. An attacker could use this vulnerability to cause a DoS or\n possibly execute arbitrary code.\n","status":"published","published":"2022-02-08T21:24:13Z","modified":"2026-06-25T13:30:13.981606783Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}