Out-of-bounds Read in Apple iOS And Ipados
CVE-2020-9943
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0. A malicious application may be able to read restricted memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.011 (65.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.7% 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 iOS And Ipados — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions unspecified
- Apple Mac OS X — versions 10.14.6, 10.15.7
- 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/HT211931 (Release Notes, Vendor Advisory)
- support.apple.com/kb/HT212011 (Vendor Advisory)
- seclists.org/fulldisclosure/2020/Dec/32 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Dec/26 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-9943?
- CVE-2020-9943 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2020-12-08.
- How severe is CVE-2020-9943?
- Medium severity. CVSS v3 base score is 5.5 out of 10.