Buffer overflow in Apple Icloud
CVE-2020-9983
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to code execution.
Vulnerability class: Buffer Overflow
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: 0.022 (81.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.022 · change: +0.001
Affected products
- Apple Icloud — versions 11.5
- Apple Ipados
- Apple Iphone OS
- Apple Itunes — versions 12.10.9
- Apple Safari — versions unspecified
- Apple tvOS — versions 14.0
- Apple watchOS — versions 7.0
- Fedoraproject Fedora — versions 32, 33
Weakness classification (CWE)
References
- support.apple.com/kb/HT211843 (Vendor Advisory)
- support.apple.com/kb/HT211850 (Vendor Advisory)
- support.apple.com/kb/HT211844 (Vendor Advisory)
- support.apple.com/HT211845 (Release Notes, Vendor Advisory)
- support.apple.com/kb/HT211952 (Vendor Advisory)
- seclists.org/fulldisclosure/2020/Nov/18 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Nov/19 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Nov/20 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Nov/22 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/11/23/3 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-9983?
- CVE-2020-9983 is a high-severity vulnerability in Apple Icloud, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-10-16.
- How severe is CVE-2020-9983?
- High severity. CVSS v3 base score is 8.8 out of 10.