Use After Free in Apple macOS
CVE-2021-21142
Use after free in Payments in Google Chrome on Mac prior to 88.0.4324.146 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Apple macOS
- Google Chrome — versions unspecified
- Fedoraproject Fedora — versions 32, 33
Weakness classification (CWE)
Public proof-of-concept exploits
References
- crbug.com/1169317 (Permissions Required)
- chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop.html (Release Notes, Vendor 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)
- security.gentoo.org/glsa/202104-08 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21142?
- CVE-2021-21142 is a critical-severity vulnerability in Apple macOS, classified under Use After Free. CVSS score: 9.6/10. Published 2021-02-09.
- How severe is CVE-2021-21142?
- Critical severity. CVSS v3 base score is 9.6 out of 10.
- Is CVE-2021-21142 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.