NetSight
critical9.6Known exploited

CVE-2020-15999

Heap buffer overflow in CefSharp

Exploited in the wild

This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2021-11-03. Federal due date: 2021-11-17.

Apply updates per vendor instructions.

Impact

### Impact A memory corruption bug(Heap overflow) in the FreeType font rendering library. > This can be exploited by attackers to execute arbitrary code by using specially crafted fonts with embedded PNG images . As per https://www.secpod.com/blog/chrome-zero-day-under-active-exploitation-patch-now/ Google is aware of reports that an exploit for CVE-2020-15999 exists in the wild. ### Patches Upgrade to 85.3.130 or higher ### References - https://www.secpod.com/blog/chrome-zero-day-under-active-exploitation-patch-now/ - https://www.zdnet.com/article/google-releases-chrome-security-update-to-patch-actively-exploited-zero-day/ - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15999 - https://magpcss.org/ceforum/viewtopic.php?f=10&t=17942 To review the `CEF/Chromium` patch see https://bitbucket.org/chromiumembedded/cef/commits/cd6cbe008b127990036945fb75e7c2c1594ab10d

Affected packages

EcosystemPackageAffectedFixed in
nugetCefSharp.Common< 85.3.13085.3.130
nugetCefSharp.Wpf< 85.3.13085.3.130
nugetCefSharp.WinForms< 85.3.13085.3.130
nugetCefSharp.Wpf.HwndHost< 85.3.13085.3.130

Affected products

VendorProductAffected versions
GoogleChrome
before 86.0.4240.111
FreetypeFreetype
from 2.6.0 before 2.10.4
DebianDebian Linux
Version 10.0
FedoraprojectFedora
Version 31
OpensuseBackports Sle
Version 15.0
NetappOntap Select Deploy Administration Utility
All versions

Weakness classification

References