CVEs / CVE-2020-15999
CVE-2020-15999: Google Chrome FreeType Heap Buffer Overflow Vulnerability
- Known exploited in the CISA KEV catalog since 3 Nov 2021
- critical 9.6 CVSS 3.1 (NVD)
- EPSS 63.8% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Google Chrome uses FreeType, an open-source software library to render fonts, which contains a heap buffer overflow vulnerability in the function Load_SBit_Png when processing PNG images embedded into fonts. This vulnerability is part of an exploit chain with CVE-2020-17087 on Windows and CVE-2020-16010 on Android.
Description
Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Google Chrome | from unspecified, before 86.0.4240.111 | 86.0.4240.111 |
| Product | Affected | Fixed in |
|---|---|---|
| CefSharp.Common (NuGet) | before 85.3.130 | 85.3.130 |
| CefSharp.Wpf (NuGet) | before 85.3.130 | 85.3.130 |
| CefSharp.WinForms (NuGet) | before 85.3.130 | 85.3.130 |
| CefSharp.Wpf.HwndHost (NuGet) | before 85.3.130 | 85.3.130 |
Package versions from GHSA-pv36-h7jh-qm62.
Exploitation
| In CISA KEV since | 3 Nov 2021 |
|---|---|
| Due date for US federal agencies | 17 Nov 2021 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 9.6 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-787, CWE-120 |
References
- CVE-2020-15999 on NVD
- CVE-2020-15999 in the CISA KEV catalog
- CVE-2020-15999 on OSV
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html Broken Link, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/33 Mailing List, Not Applicable, Third Party Advisory
- https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html Third Party Advisory
- https://crbug.com/1139963 Exploit, Issue Tracking, Third Party Advisory
- https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7/ Release Notes
- https://security.gentoo.org/glsa/202011-12 Third Party Advisory
- https://security.gentoo.org/glsa/202012-04 Third Party Advisory
- https://security.gentoo.org/glsa/202401-19 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4824 Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20240812-0001/ Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15999 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.