Use After Free in Google Android
CVE-2021-30528
Use after free in WebAuthentication in Google Chrome on Android prior to 91.0.4472.77 allowed a remote attacker who had compromised the renderer process of a user who had saved a credit card in their Google account to potentially exploit heap corruption via a crafted HTML page.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (70.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Google Android
- Google Chrome — versions unspecified
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html (Release Notes, Vendor Advisory)
- crbug.com/1206329 (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)
- packetstormsecurity.com/files/172844/Chrome-Sandbox-Escape.html
Frequently asked questions
- What is CVE-2021-30528?
- CVE-2021-30528 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 8.8/10. Published 2021-06-07.
- How severe is CVE-2021-30528?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-30528 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.