Out-of-bounds Read in Apple Icloud
CVE-2020-9961
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave. Processing a maliciously crafted image may lead to arbitrary code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Apple Icloud
- Apple Ipados
- Apple Iphone OS
- Apple Itunes
- Apple macOS — versions unspecified
- Apple Mac OS X — versions 10.13.6, 10.14.6
- Apple tvOS
- Apple watchOS
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/en-us/HT211849 (Release Notes, Vendor Advisory)
- support.apple.com/kb/HT211952 (Vendor 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)
- seclists.org/fulldisclosure/2020/Nov/21 (mailing-list, Mailing List, Third Party Advisory)
- support.apple.com/kb/HT211935 (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-9961?
- CVE-2020-9961 is a high-severity vulnerability in Apple Icloud, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2020-10-27.
- How severe is CVE-2020-9961?
- High severity. CVSS v3 base score is 7.8 out of 10.