Vulnerability · Published Feb 9, 2021 · Assigned by Chrome
CVE-2021-21121
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 6.7% (higher than 94% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.6Critical
Exploit odds (30 days)6.7%top 6.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Use after free in Omnibox in Google Chrome on Linux prior to 88.0.4324.96 allowed a remote attacker 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_git20200401-r0 | ALPINE-CVE-2021-21121 |
| Alpine:v3.21 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21121 |
| Alpine:v3.22 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21121 |
| Alpine:v3.23 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21121 |
| Debian:12 | chromium | 88.0.4324.96-0.1 | DEBIAN-CVE-2021-21121 |
| Debian:13 | chromium | 88.0.4324.96-0.1 | DEBIAN-CVE-2021-21121 |
| Debian:14 | chromium | 88.0.4324.96-0.1 | DEBIAN-CVE-2021-21121 |
Affected products (as reported)
References
- https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html x_refsource_MISC
- https://crbug.com/1161143 x_refsource_MISC
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21121 x_refsource_MISC