Google Chrome FreeType Heap Buffer Overflow Vulnerability (CVE-2020-15999)
Severity: critical · Patch status: patched · Since 2021-11-03 · CVE-2020-15999
Google Chrome uses FreeType, an open-source software library to render fonts, which contains a heap buffer overflow vulnerability in the function LoadSBitPng 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. CISA added CVE-2020-15999 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Nov 17, 2021 (BOD 22-01); treat that as the outer limit.
Sources
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