{"id":"CVE-2018-4271","aliases":["DEBIAN-CVE-2018-4271","EUVD-2018-16057","GHSA-2c8q-5cp4-4jf7","SUSE-SU-2018:2752-1","UBUNTU-CVE-2018-4271"],"status":"published","title":"Multiple memory corruption issues were addressed with improved input validation. This issue...","description":"Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/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":0.01608,"percentile":0.76089,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119"],"published":"2018-09-19T10:58:11Z","modified":"2026-10-23T18:04:47Z","fixes":[{"ecosystem":"Debian:12","package":"webkit2gtk","fixed_in":["2.20.2-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"webkit2gtk","fixed_in":["2.20.2-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"webkit2gtk","fixed_in":["2.20.2-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"webkit2gtk","fixed_in":["2.20.3-0ubuntu0.16.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"webkit2gtk","fixed_in":["2.20.3-0ubuntu0.18.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"webkit2gtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.2-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"webkit2gtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.2-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"webkit2gtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.2-1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15","package":"webkit2gtk3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.5-3.8.1"}]}],"bundled":14},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Desktop Applications 15","package":"webkit2gtk3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.5-3.8.1"}]}],"bundled":14},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"webkit2gtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.3-0ubuntu0.16.04.1"}]}],"versions":["2.8.5+dfsg1-3","2.10.3+dfsg1-1","2.10.4+dfsg1-1","2.10.5-1","2.10.6-1","2.10.6-1ubuntu1","2.10.8-1ubuntu1","2.10.9-1ubuntu1","2.12.5-0ubuntu0.16.04.1","2.14.2-0ubuntu0.16.04.1","2.14.3-0ubuntu0.16.04.1","2.14.5-0ubuntu0.16.04.1","2.16.1-0ubuntu0.16.04.1","2.16.1-0ubuntu0.16.04.2","2.16.2-0ubuntu0.16.04.1","2.16.3-0ubuntu0.16.04.1","2.16.6-0ubuntu0.16.04.1","2.18.0-0ubuntu0.16.04.2","2.18.3-0ubuntu0.16.04.1","2.18.4-0ubuntu0.16.04.1","2.18.5-0ubuntu0.16.04.1","2.18.6-0ubuntu0.16.04.1","2.20.1-0ubuntu0.16.04.1","2.20.2-0ubuntu0.16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"qtwebkit-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2+dfsg-1ubuntu2.1","5.5.1+dfsg-2ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"qtwebkit-source","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.2-0ubuntu10","2.3.2-0ubuntu11"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"webkitgtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.9-2ubuntu2","2.4.10-0ubuntu1","2.4.11-0ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"webkit2gtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.3-0ubuntu0.18.04.1"}]}],"versions":["2.18.0-2","2.18.0-2build1","2.18.2-1","2.18.3-1","2.18.4-1","2.18.6-1","2.19.91-1ubuntu1","2.19.92-1","2.20.0-1","2.20.0-2","2.20.0-2ubuntu1","2.20.1-1","2.20.2-0ubuntu0.18.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"qtwebkit-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.9.1+dfsg-5ubuntu1","5.9.1+dfsg-5ubuntu3","5.212.0~alpha2-5build2","5.212.0~alpha2-5build4","5.212.0~alpha2-7","5.212.0~alpha2-7build2","5.212.0~alpha2-7ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"qtwebkit-source","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.2-0ubuntu13"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"webkitgtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.11-3","2.4.11-3ubuntu2","2.4.11-3ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"qtwebkit-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.212.0~alpha3-3","5.212.0~alpha3-5","5.212.0~alpha3-6","5.212.0~alpha3-7","5.212.0~alpha4-1","5.212.0~alpha4-1ubuntu1","5.212.0~alpha4-1ubuntu2","5.212.0~alpha4-1ubuntu2.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"qtwebkit-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.212.0~alpha4-12","5.212.0~alpha4-13","5.212.0~alpha4-14","5.212.0~alpha4-14build1","5.212.0~alpha4-14ubuntu2","5.212.0~alpha4-15ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"qtwebkit-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.212.0~alpha4-33","5.212.0~alpha4-33build1","5.212.0~alpha4-34","5.212.0~alpha4-34ubuntu3","5.212.0~alpha4-34ubuntu4","5.212.0~alpha4-36"]}],"products":[{"vendor":"apple","product":"icloud"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"itunes"},{"vendor":"apple","product":"safari"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/kb/HT208933","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://support.apple.com/kb/HT208938","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://support.apple.com/kb/HT208935","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://support.apple.com/kb/HT208936","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://support.apple.com/kb/HT208934","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://support.apple.com/kb/HT208932","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-4271"},{"url":"https://github.com/advisories/GHSA-2c8q-5cp4-4jf7"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-4271","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20182752-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1101999","tags":["report"]},{"url":"https://bugzilla.suse.com/1104169","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12911","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4261","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4262","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4263","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4264","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4265","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4266","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4267","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4270","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4271","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4272","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4273","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4278","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-4284","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2018-4271","tags":["report"]},{"url":"https://webkitgtk.org/security/WSA-2018-0006.html","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-4271","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-4271","description":"Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","status":"published","published":"2019-04-03T17:43:13Z","modified":"2024-08-05T05:11:22.652Z","updated_at":"2026-11-02T14:35:08.341767Z"}],"euvd":[{"id":"EUVD-2018-16057","description":"Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","status":"published","published":"2019-04-03T17:43:13Z","modified":"2024-08-05T05:11:22Z","updated_at":"2026-11-03T02:40:13.563498Z"}],"ghsa":[{"id":"GHSA-2c8q-5cp4-4jf7","title":"Multiple memory corruption issues were addressed with improved input validation. This issue...","description":"Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","status":"published","published":"2022-05-13T01:52:40Z","modified":"2023-02-02T05:02:13Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:51:23.375018Z"}],"nvd":[{"id":"CVE-2018-4271","description":"Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","status":"published","published":"2019-04-03T18:29:04.487Z","modified":"2026-06-17T01:58:42.067Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/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-119"],"updated_at":"2026-11-02T14:04:55.136632Z"}],"osv":[{"id":"CVE-2018-4271","description":"Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","status":"published","published":"2019-04-03T18:29:04.487Z","modified":"2026-03-15T22:20:57.629562Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:09.442568Z"},{"id":"DEBIAN-CVE-2018-4271","description":"Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","status":"published","published":"2019-04-03T18:29:04.487Z","modified":"2026-10-23T18:04:47.879202368Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"id":"UBUNTU-CVE-2018-4271","description":"Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","status":"published","published":"2019-04-03T18:29:00Z","modified":"2026-04-22T11:55:23.893405Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:18.33562Z"},{"id":"SUSE-SU-2018:2752-1","title":"Security update for webkit2gtk3","description":"This update for webkit2gtk3 to version 2.20.5 fixes the following issues:\n\nSecurity issue fixed:\n\n- CVE-2018-12911: Fix off-by-one in xdg_mime_get_simple_globs (bsc#1101999).\n- CVE-2018-4261, CVE-2018-4262, CVE-2018-4263, CVE-2018-4264, CVE-2018-4265,\n  CVE-2018-4267, CVE-2018-4272, CVE-2018-4284: Processing maliciously crafted\n  web content may lead to arbitrary code execution. A memory corruption issue\n  was addressed with improved memory handling.\n- CVE-2018-4266: A malicious website may be able to cause a denial of service.\n  A race condition was addressed with additional validation.\n- CVE-2018-4270, CVE-2018-4271, CVE-2018-4273: Processing maliciously crafted\n  web content may lead to an unexpected application crash. A memory corruption\n  issue was addressed with improved input validation.\n- CVE-2018-4278: A malicious website may exfiltrate audio data cross-origin.\n  Sound fetched through audio elements may be exfiltrated cross-origin. This\n  issue was addressed with improved audio taint tracking.\n\nOther bugs fixed:\n\n- Fix rendering artifacts in some web sites due to a bug introduced in 2.20.4.\n- Fix a crash when leaving accelerated compositing mode.\n- Fix non-deterministic build failure due to missing JavaScriptCore/JSContextRef.h.\n","status":"published","published":"2018-09-19T10:58:11Z","modified":"2026-02-04T03:26:27.146855Z","updated_at":"2026-11-02T15:53:45.378228Z"}]}}