Vulnerability · Published Apr 26, 2021 · Assigned by Chrome
CVE-2021-21223
Critical 9.6
In plain English
A critical-severity security flaw in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.6Critical
Exploit odds (30 days)1.4%top 26.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Integer overflow in Mojo in Google Chrome prior to 90.0.4430.85 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | qt5-qtwebengine | 5.15.3_git20210510-r0 | ALPINE-CVE-2021-21223 |
| Alpine:v3.21 | qt5-qtwebengine | 5.15.3_git20210510-r0 | ALPINE-CVE-2021-21223 |
| Alpine:v3.22 | qt5-qtwebengine | 5.15.3_git20210510-r0 | ALPINE-CVE-2021-21223 |
| Alpine:v3.23 | qt5-qtwebengine | 5.15.3_git20210510-r0 | ALPINE-CVE-2021-21223 |
| Debian:12 | chromium | 90.0.4430.85-1 | DEBIAN-CVE-2021-21223 |
| Debian:13 | chromium | 90.0.4430.85-1 | DEBIAN-CVE-2021-21223 |
| Debian:14 | chromium | 90.0.4430.85-1 | DEBIAN-CVE-2021-21223 |
Affected products (as reported)
References
- https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_20.html x_refsource_MISC
- https://crbug.com/1195308 x_refsource_MISC
- DSA-4906 vendor-advisory, x_refsource_DEBIAN
- GLSA-202104-08 vendor-advisory, x_refsource_GENTOO
- FEDORA-2021-c3754414e7 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-ff893e12c5 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-35d2bb4627 vendor-advisory, x_refsource_FEDORA