High severity · published Dec 8, 2020
CVE-2020-27911
An integer overflow was addressed through improved input validation
7.8
CVSS
3.4%
EPSS
No
On KEV
Description
An integer overflow was addressed through improved input validation. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, tvOS 14.2, iTunes 12.11 for Windows. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IO
iOS · Apple
before 14.2 · source: NVD
MA
macOS · Apple
11.0 before 11.0.1 · source: NVD
IC
Icloud · Apple
before 11.5 · source: NVD
IT
Itunes · Apple
before 12.11 · source: NVD
TV
Tvos · Apple
before 14.2 · source: NVD
WA
Watchos · Apple
before 7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-27911
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-27911
Mailing List
http://seclists.org/fulldisclosure/2020/Dec/26
Mailing List
http://seclists.org/fulldisclosure/2020/Dec/32
Vendor Advisory
https://support.apple.com/en-us/HT211928
Vendor Advisory
https://support.apple.com/en-us/HT211929
Vendor Advisory
https://support.apple.com/en-us/HT211930
Vendor Advisory
https://support.apple.com/en-us/HT211931
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