CVE-2021-30518 — Out-of-bounds Write in Google Chrome

CWE-787 — Out-of-bounds Write6 documents6 sources
Severity
8.8HIGHNVD
EPSS
0.9%
top 24.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Google ChromeChromiumDebian Chromium+3 more
Timeline
PublishedJun 4
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages6 packages

▶CVEListV5google/chromeunspecified — 90.0.4430.212
▶NVDgoogle/chrome< 90.0.4430.212
▶debiandebian/chromium< chromium 90.0.4430.212-1 (bookworm)
▶Debianchromium/chromium< 90.0.4430.212-1+3

Also affects: Fedora 33, 34

Patches

Patch: crbug.com ↗Patch: crbug.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-rg35-h597-g86q: Heap buffer overflow in Reader Mode in Google Chrome prior to 90↗2022-05-24
▶
OSV
CVE-2021-30518: Heap buffer overflow in Reader Mode in Google Chrome prior to 90↗2021-06-04
▶

📋Vendor Advisories

3
Microsoft
Chromium: CVE-2021-30518 Heap buffer overflow in Reader Mode↗2021-05-11
▶
Chrome
Stable Channel Update for Desktop: CVE-2021-30518↗2021-05-10
▶
Debian
CVE-2021-30518: chromium - Heap buffer overflow in Reader Mode in Google Chrome prior to 90.0.4430.212 allo...↗2021
▶