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CVE-2020-15999: Heap buffer overflow in CefSharp

October 27, 2020 (updated February 3, 2025)

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.

References

  • chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html
  • crbug.com/1139963
  • github.com/advisories/GHSA-pv36-h7jh-qm62
  • github.com/cefsharp/CefSharp
  • github.com/cefsharp/CefSharp/security/advisories/GHSA-pv36-h7jh-qm62
  • googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7
  • nvd.nist.gov/vuln/detail/CVE-2020-15999
  • security.gentoo.org/glsa/202011-12
  • security.gentoo.org/glsa/202012-04
  • security.gentoo.org/glsa/202401-19
  • security.netapp.com/advisory/ntap-20240812-0001
  • www.debian.org/security/2021/dsa-4824
  • www.nuget.org/packages/CefSharp.Common
  • www.nuget.org/packages/CefSharp.WinForms
  • www.nuget.org/packages/CefSharp.Wpf
  • www.nuget.org/packages/CefSharp.Wpf.HwndHost

Code Behaviors & Features

Detect and mitigate CVE-2020-15999 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 85.3.130

Fixed versions

  • 85.3.130

Solution

Upgrade to version 85.3.130 or above.

Impact 6.5 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-787: Out-of-bounds Write

Source file

nuget/CefSharp.Common/CVE-2020-15999.yml

Spotted a mistake? Edit the file on GitLab.

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