{"id":"CVE-2017-6961","aliases":["DEBIAN-CVE-2017-6961","DLA-2911-1","EUVD-2017-15999","GHSA-hqvw-jgm8-f4v5","UBUNTU-CVE-2017-6961"],"status":"published","title":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing...","description":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk-\u003esize value (within the PNG file) to determine the amount of memory to allocate.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00796,"percentile":0.56699,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2017-03-17T08:55:00Z","modified":"2026-09-01T20:03:49Z","fixes":[{"ecosystem":"Debian:12","package":"apng2gif","fixed_in":["1.8-0.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"apng2gif","fixed_in":["1.8-0.1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"apng2gif","fixed_in":["1.8-0.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"apng2gif","fixed_in":["1.8-0.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"apng2gif","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-0.1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"apng2gif","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-0.1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"apng2gif","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-0.1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"apng2gif","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-0.1~deb9u1"}]}],"versions":["1.7-1"],"bundled":3},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"apng2gif","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"apng2gif","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-0.1"}]}]}],"products":[{"vendor":"apng2gif_project","product":"apng2gif"}],"references":[{"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854441","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-6961"},{"url":"https://github.com/advisories/GHSA-hqvw-jgm8-f4v5"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-6961","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-6961","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-6961","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-6961","description":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk-\u003esize value (within the PNG file) to determine the amount of memory to allocate.","status":"published","published":"2017-03-17T08:55:00Z","modified":"2024-08-05T15:49:02.881Z","updated_at":"2026-11-02T14:33:16.916541Z"}],"euvd":[{"id":"EUVD-2017-15999","description":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk-\u003esize value (within the PNG file) to determine the amount of memory to allocate.","status":"published","published":"2017-03-17T08:55:00Z","modified":"2024-08-05T15:49:02Z","updated_at":"2026-11-03T02:39:10.49179Z"}],"ghsa":[{"id":"GHSA-hqvw-jgm8-f4v5","title":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing...","description":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk-\u003esize value (within the PNG file) to determine the amount of memory to allocate.","status":"published","published":"2022-05-17T02:54:34Z","modified":"2023-01-27T05:06:22Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:42:54.023332Z"}],"nvd":[{"id":"CVE-2017-6961","description":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk-\u003esize value (within the PNG file) to determine the amount of memory to allocate.","status":"published","published":"2017-03-17T09:59:00.287Z","modified":"2026-06-17T01:23:23.173Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:44.275273Z"}],"osv":[{"id":"CVE-2017-6961","description":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk-\u003esize value (within the PNG file) to determine the amount of memory to allocate.","status":"published","published":"2017-03-17T09:59:00.287Z","modified":"2026-03-14T09:26:25.654769Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:06.412595Z"},{"id":"DEBIAN-CVE-2017-6961","description":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk-\u003esize value (within the PNG file) to determine the amount of memory to allocate.","status":"published","published":"2017-03-17T09:59:00.287Z","modified":"2026-09-01T20:03:49.689500756Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:29.412243Z"},{"id":"UBUNTU-CVE-2017-6961","description":"An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk-\u003esize value (within the PNG file) to determine the amount of memory to allocate.","status":"published","published":"2017-03-17T09:59:00Z","modified":"2025-10-24T04:46:13Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:15.773974Z"},{"id":"DLA-2911-1","title":"apng2gif - security update","status":"published","published":"2022-02-04T00:00:00Z","modified":"2026-03-09T01:20:56.752247Z","updated_at":"2026-11-02T15:46:11.189256Z"}]}}