Vulnerability · Published Feb 22, 2021 · Assigned by Chrome
CVE-2021-21156
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 2.7% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)2.7%top 14.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.182 allowed a remote attacker to potentially exploit heap corruption via a crafted script.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21156 |
| Alpine:v3.21 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21156 |
| Alpine:v3.22 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21156 |
| Alpine:v3.23 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21156 |
| Debian:12 | chromium | 88.0.4324.182-1 | DEBIAN-CVE-2021-21156 |
| Debian:13 | chromium | 88.0.4324.182-1 | DEBIAN-CVE-2021-21156 |
| Debian:14 | chromium | 88.0.4324.182-1 | DEBIAN-CVE-2021-21156 |
Affected products (as reported)
References
- https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_16.html x_refsource_MISC
- https://crbug.com/1177341 x_refsource_MISC
- FEDORA-2021-aa764a8531 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-c88a96bd4b vendor-advisory, x_refsource_FEDORA
- GLSA-202104-08 vendor-advisory, x_refsource_GENTOO
- http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html x_refsource_MISC