{"id":"CVE-2018-19759","aliases":["DEBIAN-CVE-2018-19759","EUVD-2018-11443","GHSA-38x5-vg2x-7hw6","UBUNTU-CVE-2018-19759"],"status":"published","title":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in...","description":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.","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":"2026-11-09","score":0.00678,"percentile":0.52601,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2018-11-30T03:00:00Z","modified":"2026-10-24T10:30:17Z","fixes":[{"ecosystem":"Debian:12","package":"libsixel","fixed_in":["1.8.2-2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libsixel","fixed_in":["1.8.2-2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libsixel","fixed_in":["1.8.2-2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.2-2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.2-2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libsixel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.2-2"}]}]},{"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"]}],"products":[{"vendor":"saitoha","product":"libsixel"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1649202","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-19759"},{"url":"https://github.com/advisories/GHSA-38x5-vg2x-7hw6"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-19759","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-19759","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-19759","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-19759","description":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.","status":"published","published":"2018-11-30T03:00:00Z","modified":"2024-09-16T18:13:12.4Z","updated_at":"2026-11-02T14:35:02.966615Z"}],"euvd":[{"id":"EUVD-2018-11443","description":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.","status":"published","published":"2018-11-30T03:00:00Z","modified":"2024-09-16T18:13:12Z","updated_at":"2026-11-03T00:55:34.828317Z"}],"ghsa":[{"id":"GHSA-38x5-vg2x-7hw6","title":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in...","description":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.","status":"published","published":"2022-05-14T01:45:36Z","modified":"2023-02-02T05:04:37Z","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-125"],"updated_at":"2026-11-02T14:51:54.899736Z"}],"nvd":[{"id":"CVE-2018-19759","description":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.","status":"published","published":"2018-11-30T03:29:00.437Z","modified":"2026-06-17T01:49:48.89Z","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-125"],"updated_at":"2026-11-02T14:04:48.987926Z"}],"osv":[{"id":"CVE-2018-19759","description":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.","status":"published","published":"2018-11-30T03:29:00.437Z","modified":"2026-10-24T10:30:17.084870429Z","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":"2026-11-02T15:44:08.834469Z"},{"id":"DEBIAN-CVE-2018-19759","description":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.","status":"published","published":"2018-11-30T03:29:00.437Z","modified":"2026-10-23T18:03:04.134891101Z","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":"2026-11-02T15:45:30.57382Z"},{"id":"UBUNTU-CVE-2018-19759","description":"There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.","status":"published","published":"2018-11-30T03:29:00Z","modified":"2026-04-22T11:51:20.306602Z","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":"2026-11-02T15:54:17.91743Z"}]}}