Multiple serious vulnerabilities have been found in Google Chrome. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause denial of service and gain privileges.

Below is a complete list of vulnerabilities:

1. A chain leading to sandbox escape can be exploited remotely to execute arbitrary code;
2. A privilege escalation vulnerability in extensions can be exploited remotely to gain privileges;
3. A type confusion vulnerability in V8 can be exploited remotely possibly to execute arbitrary code;
4. A heap buffer overflow vulnerability in PDFium can be exploited remotely possibly to cause denial of service;

NB: This vulnerability does not have any public CVSS rating, so rating can be changed by the time.

NB: At this moment Google has just reserved CVE numbers for these vulnerabilities. Information can be changed soon.

Google Chrome earlier than 66.0.3359.170

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CVE-2018-6122
CVE-2018-6120
CVE-2018-6121