{"schemaVersion":3,"id":"MGASA-2021-0400","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated webkit2 packages fix security vulnerabilities\n\nUpdated webkit2 packages fix security vulnerabilities:\n\nA use-after-free vulnerability exists in the way certain events are\nprocessed for ImageLoader objects of Webkit WebKitGTK 2.30.4. A specially\ncrafted web page can lead to a potential information leak and further\nmemory corruption. In order to trigger the vulnerability, a victim must\nbe tricked into visiting a malicious webpage (CVE-2021-21775).\n\nA use-after-free vulnerability exists in the way Webkit GraphicsContext\nhandles certain events in WebKitGTK 2.30.4. A specially crafted web page\ncan lead to a potential information leak and further memory corruption.\nA victim must be tricked into visiting a malicious web page to trigger\nthis vulnerability (CVE-2021-21779).\n\nProcessing maliciously crafted web content may lead to arbitrary code\nexecution (CVE-2021-30663, CVE-2021-30665, CVE-2021-30734, CVE-2021-30749,\nCVE-2021-30758, CVE-2021-30795, CVE-2021-30797, CVE-2021-30799).\n\nProcessing maliciously crafted web content may lead to universal cross\nsite scripting (CVE-2021-30689, CVE-2021-30744).\n\nA malicious website may be able to access restricted ports on arbitrary\nservers (CVE-2021-30720).","dates":{"published":"2021-08-14T14:00:09.000Z","modified":"2026-04-16T04:44:08.956Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"mageia","product":"webkit2","name":"webkit2","label":"webkit2","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/webkit2","purlType":"rpm","versions":[{"text":"< 2.32.3-1.mga8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.32.3-1.mga8","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2021-0400.html","label":"advisories.mageia.org/MGASA-2021-0400.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=29282","label":"bugs.mageia.org/show_bug.cgi?id=29282","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://webkitgtk.org/2021/07/09/webkitgtk2.32.2-released.html","label":"webkitgtk.org/2021/07/09/webkitgtk2.32.2-released.html","hostname":"webkitgtk.org","tags":["WEB"]},{"url":"https://webkitgtk.org/2021/07/23/webkitgtk2.32.3-released.html","label":"webkitgtk.org/2021/07/23/webkitgtk2.32.3-released.html","hostname":"webkitgtk.org","tags":["WEB"]},{"url":"https://webkitgtk.org/security/WSA-2021-0004.html","label":"webkitgtk.org/security/WSA-2021-0004.html","hostname":"webkitgtk.org","tags":["WEB"]}],"lineage":{"upstream":["CVE-2021-21775","CVE-2021-21779","CVE-2021-30663","CVE-2021-30665","CVE-2021-30689","CVE-2021-30720","CVE-2021-30734","CVE-2021-30744","CVE-2021-30749","CVE-2021-30758","CVE-2021-30795","CVE-2021-30797","CVE-2021-30799"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-08-14T14:00:09.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T04:44:08.956Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T05:28:48.090Z","stale":false,"partial":false}}