Use After Free in Apple Mac OS X
CVE-2021-21204
Use after free in Blink in Google Chrome on OS X prior to 90.0.4430.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Vulnerability class: Use-After-Free
EPSS: 0.016 (72.6th percentile) — read the EPSS interpretation.
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.
Affected products
- Apple Mac_os_x
- Google Chrome — versions unspecified
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 32, 33, 34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chrome-cve-admin@google.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- chrome-cve-admin@google.com (Permissions Required, x_refsource_MISC, Vendor Advisory)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2021-21204?
- CVE-2021-21204 is a high-severity vulnerability in Apple Mac OS X, classified under Use After Free. CVSS score: 8.8/10. Published 2021-04-26.
- How severe is CVE-2021-21204?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-21204 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.