Google Chromium V8 Memory Corruption Vulnerability (CVE-2021-38003)
Severity: high · Patch status: patched · Since 2021-11-03 · CVE-2021-38003
Google Chromium V8 Engine has a bug in JSON.stringify, where the internal TheHole value can leak to script code, causing memory corruption. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera. CISA added CVE-2021-38003 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
All live incidents on Threat Watch