Buffer overflow in Apple iOS And Ipados
CVE-2021-30737
A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, iOS 12.5.4, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted certificate may lead to arbitrary 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: 0.015 (73.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · 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, 10.15.6, 10.15.7
- Apple tvOS
- Apple watchOS
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT212548 (Vendor Advisory)
- support.apple.com/en-us/HT212528 (Vendor Advisory)
- support.apple.com/en-us/HT212529 (Vendor Advisory)
- support.apple.com/en-us/HT212532 (Vendor Advisory)
- support.apple.com/en-us/HT212533 (Vendor Advisory)
- support.apple.com/en-us/HT212530 (Vendor Advisory)
- support.apple.com/en-us/HT212531 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-30737?
- CVE-2021-30737 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-09-08.
- How severe is CVE-2021-30737?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-30737 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.