Vulnerability in Apple Icloud
CVE-2020-27932
A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. A malicious application may be able to execute arbitrary code with kernel privileges.
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: 0.103 (95.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.103 · newest: 0.103 · change: 0.000
Affected products
- Apple Icloud
- Apple iOS And Ipados — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple Itunes
- Apple macOS — versions unspecified
- Apple Mac OS X
- Apple watchOS — versions unspecified
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT211931 (Vendor Advisory)
- support.apple.com/en-us/HT211928 (Vendor Advisory)
- support.apple.com/en-us/HT211929 (Vendor Advisory)
- support.apple.com/en-us/HT211940 (Vendor Advisory)
- support.apple.com/en-us/HT211944 (Vendor Advisory)
- support.apple.com/en-us/HT211945 (Vendor Advisory)
- support.apple.com/en-us/HT211946 (Vendor Advisory)
- support.apple.com/en-us/HT211947 (Vendor Advisory)
- seclists.org/fulldisclosure/2020/Dec/32 (mailing-list, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/161295/XNU-Kernel-Turnstiles-Type-Confusion.html (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27932?
- CVE-2020-27932 is a high-severity vulnerability in Apple Icloud, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.8/10. Published 2020-12-08.
- How severe is CVE-2020-27932?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-27932 known to be exploited?
- Yes. CVE-2020-27932 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.