{"uuid": "0c640442-1338-4a08-b473-b3aa881aabcc", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-30563", "type": "seen", "source": "https://t.me/hacking_Attack/25743", "content": "Black Hat Ethical Hacking\nGoogle pushes emergency Chrome update to fix two zero-days\n\nhttps://www.blackhatethicalhacking.com/wp-content/uploads/2021/08/Untitled-design-2-1.png Google pushes emergency Chrome update to fix two zero-daysPost Views: 73 \nReading Time: 1 Minute\nGoogle has released Chrome 94.0.4606.71 for Windows, Mac, and Linux, to fix two zero-day vulnerabilities that have been exploited by attackers.\n\u201cGoogle is aware the exploits for CVE-2021-37975 and CVE-2021-37976 exist in the wild,\u201d Google disclosed in the list of security fixes\u00a0fixed in today\u2019s Google Chrome release.\n\nGoogle has started rolling out Chrome 94.0.4606.71 to users worldwide\u00a0in the Stable Desktop channel and should be available to all users within the coming days.\n\nTo install the update immediately, Google Chrome users can go to Chrome menu > Help > About Google Chrome, and the browser will begin performing the update.\n\nIn our tests, the new version of the browser was installed immediately using the above steps.\nhttps://www.bleepstatic.com/images/news/web-browsers/chrome/chrome-94.jpg \nZero-day attacks\u2019 details not disclosedWhile this Chrome release includes fixes for four security vulnerabilities, the two zero-days are concerning as they are known to have been exploited in the wild.\n\nThe first zero-day, tracked as CVE-2021-37976, is described as an \u201cInformation leak in core\u201d and was assigned a Medium severity level. This vulnerability was discovered by Cl\u00e9ment Lecigne from Google TAG, with technical assistance from Sergei Glazunov and Mark Brand from Google Project Zero, on September 21st, 2021.\n\nThe second zero-day, tracked as CVE-2021-37975, is a High severity user after free\u00a0bug in the Chrome V8 JavaScript engine. The researcher disclosed this vulnerability on September 24th and wished to remain anonymous.\n\nUse after free bugs are commonly used to perform remote code execution or escape the browser\u2019s security sandbox.\n\nAt this time, there are no other details regarding how these zero-day vulnerabilities were used in attacks but may be released in future reports by Google TAG or Project Zero.\n2 more in-the-wild 0days fixed by Chrome:\n* CVE-2021-37975 use-after-free in V8 by anonymous\n* CVE-2021-37976 info leak in core by @_clem1 #itw0days\n\nThe release cycle that Chrome is making happen in order to get these patches out is pretty impressivehttps://t.co/j1xPY4zjlP\n\n\u2014 Maddie Stone (@maddiestone) September 30, 2021\nSee Also: Hackers exploiting critical VMware vCenter CVE-2021-22005 bug Chrome users should perform a manual upgrade or restart their browser to install the latest version and prevent exploitation attempts. Thirteenth zero-day fixed this yearWith these two fixes, Google has patched 13\u00a0zero-day vulnerabilities in the Chrome web browser since the start of 2021.\n\nThe other Chrome zero-day bugs Google fixed this year are:\n\n* CVE-2021-21148\u00a0\u2013 February 4th, 2021\n* CVE-2021-21166\u00a0\u2013 March 2nd, 2021\n* CVE-2021-21193\u00a0\u2013 March 12th, 2021\n* CVE-2021-21220\u00a0\u2013 April 13th, 2021\n* CVE-2021-21224\u00a0\u2013 April 20th, 2021\n* CVE-2021-30551\u00a0\u2013 June 9th, 2021\n* CVE-2021-30554\u00a0\u2013 June 17th, 2021\n* CVE-2021-30563\u00a0\u2013 July 15th, 2021\n* CVE-2021-30632 and CVE-2021-30633\u00a0\u2013 September 13th\n* CVE-2021-37973\u00a0\u2013 September 24th, 2021\n\nAs Google is\u00a0rushing out Chrome updates to fix zero-days as they are reported, it is always critical to install new browser updates as soon as they become available.\nSee Also: Offensive Security Tool: Discover\n[...]\n\n___________________________ \n@hacking_Attack\n@Hacking_Video", "creation_timestamp": "2026-09-01T20:02:19.620675Z"}