{"id":"CVE-2019-19777","aliases":["DEBIAN-CVE-2019-19777","EUVD-2019-9376","GHSA-6rrw-8mq7-2wvv","UBUNTU-CVE-2019-19777"],"status":"published","title":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap...","description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01392,"percentile":0.72716,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2019-12-13T01:05:52Z","modified":"2026-10-20T10:51:38Z","fixes":[{"ecosystem":"Debian:12","package":"libsixel","fixed_in":["1.8.6-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libsixel","fixed_in":["1.8.6-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libsixel","fixed_in":["1.8.6-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.6-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.6-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.6-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.2-1","1.5.2-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.2-2","1.7.3-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.2-1","1.8.2-2.1"]}],"products":[{"vendor":"nothings","product":"stb_image.h"},{"vendor":"saitoha","product":"libsixel"}],"references":[{"url":"https://github.com/saitoha/libsixel/issues/109","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-19777"},{"url":"https://github.com/advisories/GHSA-6rrw-8mq7-2wvv"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-19777","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-19777","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-19777","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-19777","description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.","status":"published","published":"2019-12-13T01:05:52Z","modified":"2024-08-05T02:25:12.783Z","updated_at":"2026-11-02T14:20:21.059499Z"}],"euvd":[{"id":"EUVD-2019-9376","description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.","status":"published","published":"2019-12-13T01:05:52Z","modified":"2024-08-05T02:25:12Z","updated_at":"2026-11-03T02:40:24.313121Z"}],"ghsa":[{"id":"GHSA-6rrw-8mq7-2wvv","title":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap...","description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.","status":"published","published":"2022-05-24T17:03:37Z","modified":"2026-04-24T15:33:24Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:07:37.660763Z"}],"nvd":[{"id":"CVE-2019-19777","description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.","status":"published","published":"2019-12-13T02:15:10.893Z","modified":"2026-06-17T02:27:13.943Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/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-125"],"updated_at":"2026-11-02T14:05:40.258829Z"}],"osv":[{"id":"CVE-2019-19777","description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.","status":"published","published":"2019-12-13T02:15:10.893Z","modified":"2026-10-20T10:51:38.471814523Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:12.010761Z"},{"id":"DEBIAN-CVE-2019-19777","description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.","status":"published","published":"2019-12-13T02:15:10.893Z","modified":"2026-09-21T07:03:15.588777039Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:32.221385Z"},{"id":"UBUNTU-CVE-2019-19777","description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.","status":"published","published":"2019-12-13T02:15:00Z","modified":"2026-04-22T12:16:19.831072Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:20.325378Z"}]}}