Out-of-bounds Read in Google Chrome
CVE-2021-30511
Out of bounds read in Tab Groups in Google Chrome prior to 90.0.4430.212 allowed an attacker who convinced a user to install a malicious extension to perform an out of bounds memory read via a crafted HTML page.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Google Chrome — versions unspecified
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
- crbug.com/1197875 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- security.gentoo.org/glsa/202107-06 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-30511?
- CVE-2021-30511 is a high-severity vulnerability in Google Chrome, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2021-06-04.
- How severe is CVE-2021-30511?
- High severity. CVSS v3 base score is 8.1 out of 10.