CVE-2023-6345
Published: November 30, 2023
Official Description
Google Chromium Skia contains an integer overflow vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a malicious file. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.
CISA KEV Advisory
Google Skia Integer Overflow Vulnerability
Google Chromium Skia contains an integer overflow vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a malicious file. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
An integer overflow in Google Chromium Skia could allow a remote attacker, after compromising the renderer process, to escape the sandbox via a malicious file. This vulnerability is critical due to its presence in CISA's KEV and active exploitation in the wild, affecting various Google products.
This vulnerability is actively being exploited in the wild, as confirmed by its presence in CISA's KEV. Exploitation requires a prior compromise of the renderer process and interaction with a malicious file.
Update Google Chrome, ChromeOS, Android, Flutter, and any other affected products to the latest secure versions. Implement strong sandboxing and restrict untrusted file processing.
Technical Analysis
CVE-2023-6345 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2023-6345 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-6345 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1