CVE-2020-16009 vulnerability in Google and Other Products
Published on November 3, 2020
Known Exploited Vulnerability
This Chromium V8 Implementation Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Inappropriate implementation in V8 in Google Chrome prior to 86.0.4240.183 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
The following remediation steps are recommended / required by May 3, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2020-16009 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Types
What is an Object Type Confusion Vulnerability?
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CVE-2020-16009 has been classified to as an Object Type Confusion vulnerability or weakness.
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2020-16009 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2020-16009
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Affected Versions
Google Chrome:- Version unspecified and below 86.0.4240.183 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2020-16009
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| nuget | CefSharp.Common | < 86.0.241 | 86.0.241 |
| nuget | CefSharp.Wpf | < 86.0.241 | 86.0.241 |
| nuget | CefSharp.WinForms | < 86.0.241 | 86.0.241 |
| nuget | CefSharp.Wpf.HwndHost | < 86.0.241 | 86.0.241 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.