{"id":"CVE-2021-30543","aliases":["DEBIAN-CVE-2021-30543","EUVD-2021-17464","GHSA-fcgj-qg8m-28wx","UBUNTU-CVE-2021-30543"],"status":"published","title":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who...","description":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.","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":"2026-11-10","score":0.00788,"percentile":0.56533,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2021-06-07T19:25:53Z","modified":"2026-10-23T18:03:48Z","fixes":[{"ecosystem":"Debian:12","package":"chromium","fixed_in":["93.0.4577.82-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"chromium","fixed_in":["93.0.4577.82-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"chromium","fixed_in":["93.0.4577.82-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"chromium-browser","fixed_in":["91.0.4472.101-0ubuntu0.18.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"chromium","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"93.0.4577.82-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"chromium","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"93.0.4577.82-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"chromium","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"93.0.4577.82-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"chromium-browser","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.0.4472.101-0ubuntu0.18.04.1"}]}],"versions":["61.0.3163.100-0ubuntu1.1378","62.0.3202.62-0ubuntu0.17.10.1380","62.0.3202.89-0ubuntu1.1386","62.0.3202.94-0ubuntu1.1388","63.0.3239.84-0ubuntu1","63.0.3239.108-0ubuntu1","64.0.3282.119-0ubuntu1","64.0.3282.140-0ubuntu1","64.0.3282.167-0ubuntu1","65.0.3325.146-0ubuntu1","65.0.3325.181-0ubuntu1","66.0.3359.139-0ubuntu0.18.04.3","66.0.3359.181-0ubuntu0.18.04.1","67.0.3396.99-0ubuntu0.18.04.1","68.0.3440.75-0ubuntu0.18.04.1","68.0.3440.106-0ubuntu0.18.04.1","69.0.3497.81-0ubuntu0.18.04.1","70.0.3538.67-0ubuntu0.18.04.1","70.0.3538.77-0ubuntu0.18.04.1","70.0.3538.110-0ubuntu0.18.04.1","71.0.3578.80-0ubuntu0.18.04.1","71.0.3578.98-0ubuntu0.18.04.1","72.0.3626.119-0ubuntu0.18.04.1","72.0.3626.121-0ubuntu0.18.04.1","73.0.3683.75-0ubuntu0.18.04.1","73.0.3683.86-0ubuntu0.18.04.1","74.0.3729.169-0ubuntu0.18.04.1","75.0.3770.90-0ubuntu0.18.04.1","75.0.3770.142-0ubuntu0.18.04.1","76.0.3809.87-0ubuntu0.18.04.1","76.0.3809.100-0ubuntu0.18.04.1","77.0.3865.90-0ubuntu0.18.04.1","78.0.3904.70-0ubuntu0.18.04.2","78.0.3904.97-0ubuntu0.18.04.1","78.0.3904.108-0ubuntu0.18.04.1","79.0.3945.79-0ubuntu0.18.04.1","79.0.3945.130-0ubuntu0.18.04.1","80.0.3987.87-0ubuntu0.18.04.1","80.0.3987.149-0ubuntu0.18.04.1","80.0.3987.163-0ubuntu0.18.04.1","81.0.4044.122-0ubuntu0.18.04.1","81.0.4044.138-0ubuntu0.18.04.1","83.0.4103.61-0ubuntu0.18.04.1","84.0.4147.105-0ubuntu0.18.04.1","85.0.4183.83-0ubuntu0.18.04.2","85.0.4183.121-0ubuntu0.18.04.1","86.0.4240.75-0ubuntu0.18.04.1","86.0.4240.198-0ubuntu0.18.04.1","87.0.4280.66-0ubuntu0.18.04.1","89.0.4389.82-0ubuntu0.18.04.1","89.0.4389.90-0ubuntu0.18.04.2","90.0.4430.72-0ubuntu0.18.04.1","90.0.4430.93-0ubuntu0.18.04.1","91.0.4472.77-0ubuntu0.18.04.1"]}],"products":[{"vendor":"fedoraproject","product":"fedora"},{"vendor":"google","product":"chrome"}],"references":[{"url":"https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory","report"]},{"url":"https://crbug.com/1203607","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WKQDE3PWDKASAPSUJYMOQGL73L3YQRFS/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30543"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WKQDE3PWDKASAPSUJYMOQGL73L3YQRFS/"},{"url":"https://github.com/advisories/GHSA-fcgj-qg8m-28wx"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-30543","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-30543","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-30543","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-30543","description":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.","status":"published","published":"2021-06-07T19:25:53Z","modified":"2024-08-03T22:32:41.197Z","updated_at":"2026-11-02T14:33:01.852999Z"}],"euvd":[{"id":"EUVD-2021-17464","description":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.","status":"published","published":"2021-06-07T19:25:53Z","modified":"2024-08-03T22:32:41Z","updated_at":"2026-11-03T03:24:41.906207Z"}],"ghsa":[{"id":"GHSA-fcgj-qg8m-28wx","title":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who...","description":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.","status":"published","published":"2022-05-24T19:04:09Z","modified":"2023-01-29T05:06:53Z","cwes":["CWE-416"],"updated_at":"2026-11-02T14:46:06.857512Z"}],"nvd":[{"id":"CVE-2021-30543","description":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.","status":"published","published":"2021-06-07T20:15:08.97Z","modified":"2026-06-17T03:50:25.823Z","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-416"],"updated_at":"2026-11-02T14:06:54.439974Z"}],"osv":[{"id":"CVE-2021-30543","description":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.","status":"published","published":"2021-06-07T20:15:08.97Z","modified":"2026-03-14T10:57:40.633208Z","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":"2026-11-02T15:44:19.483607Z"},{"id":"DEBIAN-CVE-2021-30543","description":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.","status":"published","published":"2021-06-07T20:15:08.97Z","modified":"2026-10-23T18:03:48.984855244Z","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":"2026-11-02T15:45:34.94143Z"},{"id":"UBUNTU-CVE-2021-30543","description":"Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.","status":"published","published":"2021-06-07T20:15:00Z","modified":"2025-09-08T16:47:07Z","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":"2026-11-02T15:54:27.332852Z"}]}}
