Use After Free in Apple Icloud
CVE-2020-9947
A use after free issue was addressed with improved memory management. This issue is fixed in watchOS 7.0, iOS 14.0 and iPadOS 14.0, iTunes for Windows 12.10.9, iCloud for Windows 11.5, tvOS 14.0, Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution.
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: 0.018 (77.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.018 · change: +0.001
Affected products
- Apple Icloud
- Apple Icloud For Windows — versions unspecified
- Apple iOS And Ipados — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple Itunes
- Apple Itunes For Windows — versions unspecified
- Apple Safari — versions unspecified
- Apple tvOS — versions unspecified
- Apple watchOS — versions unspecified
Weakness classification (CWE)
References
- support.apple.com/en-us/HT211843 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT211850 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT211844 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT211935 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT211952 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT211845 (Release Notes, Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/03/22/1 (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202104-03 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-9947?
- CVE-2020-9947 is a high-severity vulnerability in Apple Icloud, classified under Use After Free. CVSS score: 8.8/10. Published 2020-12-08.
- How severe is CVE-2020-9947?
- High severity. CVSS v3 base score is 8.8 out of 10.