Vulnerability · Published Oct 19, 2021 · Assigned by apple
CVE-2021-30843
High 7.8
In plain English
A high-severity security flaw in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities).
Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.3%top 28.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
This issue was addressed with improved checks. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing a maliciously crafted dfont file may lead to arbitrary code execution.
Affected products (as reported)
References
- https://support.apple.com/en-us/HT212804 x_refsource_MISC
- https://support.apple.com/en-us/HT212805 x_refsource_MISC
- https://support.apple.com/en-us/HT212807 x_refsource_MISC
- https://support.apple.com/en-us/HT212814 x_refsource_MISC
- https://support.apple.com/en-us/HT212819 x_refsource_MISC
- https://support.apple.com/en-us/HT212815 x_refsource_MISC
- 20211027 APPLE-SA-2021-10-26-10 Additional information for APPLE-SA-2021-09-20-2 watchOS 8 mailing-list, x_refsource_FULLDISC
- 20211027 APPLE-SA-2021-10-26-11 Additional information for APPLE-SA-2021-09-20-3 tvOS 15 mailing-list, x_refsource_FULLDISC
- 20211027 APPLE-SA-2021-10-26-9 Additional information for APPLE-SA-2021-09-20-1 iOS 15 and iPadOS 15 mailing-list, x_refsource_FULLDISC