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CVE-2020-15999: Google Chrome FreeType Heap Buffer Overflow Vulnerability

criticalknown exploitedpublic exploitCVE-2020-15999
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Googleproduct: ChromeRemote code execution
What
This vulnerability is a heap buffer overflow in the FreeType library when processing PNG images embedded into fonts.
Who is affected
Users of Google Chrome that utilize the FreeType library.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update Google Chrome to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-15999

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-15999coverage & exploitation statusNVD · CVE.org

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