Integer Overflow in Google Chrome Skia Engine (CVE‑2023‑2136) Enables Potential Sandbox Escape
What It Is – A CVE‑2023‑2136 integer‑overflow flaw in the Skia graphics library used by Google Chrome, ChromeOS, Android, Flutter and related products. Exploiting the overflow can let a remote attacker who already controls the renderer process break out of Chrome’s sandbox.
Exploitability – Publicly disclosed; proof‑of‑concept code exists. The CVSS v3.1 base score is 8.8 (High).
Affected Products – Google Chrome (desktop & mobile), ChromeOS, Android WebView, Flutter applications, and any other software that embeds the Skia engine.
Why It Matters for Trust & Control Assurance
- Demonstrates the need for continuous software‑supply‑chain monitoring and rapid patch deployment as evidence of due‑diligence.
- A sandbox escape bypasses a core segregation of duties control; auditors will look for documented remediation and verification.
- Enterprises must capture defensible audit trails showing the vulnerability was identified, mitigated, and the control environment re‑validated.
Recommended Actions
- Verify your Chrome/Chromium version; apply the latest security update that addresses CVE‑2023‑2136.
- Update asset inventories to flag any devices still running vulnerable versions.
- Record remediation steps in your control‑mapping repository to provide evidence for audits.
- Enable continuous vulnerability scanning for third‑party libraries such as Skia.
Source: CISA KEV – CVE‑2023‑2136