Vulnerability · Published Jun 4, 2021 · Assigned by Chrome
CVE-2021-30518
High 8.8
In plain English
A high-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 1.3% (higher than 71% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.3%top 29.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Heap buffer overflow in Reader Mode in Google Chrome prior to 90.0.4430.212 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | qt5-qtwebengine | 5.15.3_git20210510-r1 | ALPINE-CVE-2021-30518 |
| Alpine:v3.21 | qt5-qtwebengine | 5.15.3_git20210510-r1 | ALPINE-CVE-2021-30518 |
| Alpine:v3.22 | qt5-qtwebengine | 5.15.3_git20210510-r1 | ALPINE-CVE-2021-30518 |
| Alpine:v3.23 | qt5-qtwebengine | 5.15.3_git20210510-r1 | ALPINE-CVE-2021-30518 |
| Debian:12 | chromium | 90.0.4430.212-1 | DEBIAN-CVE-2021-30518 |
| Debian:13 | chromium | 90.0.4430.212-1 | DEBIAN-CVE-2021-30518 |
| Debian:14 | chromium | 90.0.4430.212-1 | DEBIAN-CVE-2021-30518 |
Affected products (as reported)
References
- https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop.html x_refsource_MISC
- https://crbug.com/1203590 x_refsource_MISC
- GLSA-202107-06 vendor-advisory, x_refsource_GENTOO
- FEDORA-2021-f94dadff78 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-ca58c57bdf vendor-advisory, x_refsource_FEDORA