CVE-2020-27930: Apple Multiple Products Memory Corruption Vulnerability
CVE-2020-27930 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03
A memory corruption vulnerability in the FontParser component of multiple Apple operating systems allows for arbitrary code execution. The issue stems from insufficient input validation when processing maliciously crafted fonts.
Yes. CVE-2020-27930 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2020-27930?
Critical severity, with a CVSS score of 7.8, published 3 November 2021.
Which products and versions are affected?
Apple iOS < 12.4.9, 14.0 to < 14.2; Apple iPadOS < 14.2; Apple macOS < 11.0.1, 10.15.7 Supplemental Update, 10.15.7 Update; Apple watchOS < 5.3.9, 6.0 to < 6.2.9, 7.0 to < 7.1.
Is there a fix for CVE-2020-27930?
A patch was published on 2020-11-05: Addressed in various OS updates including iOS 14.2 and macOS Big Sur 11.0.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2020-27930 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2020-27930?
Check whether you run Apple Multiple Products. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Apple iOS < 12.4.9, 14.0 to < 14.2
Apple iPadOS < 14.2
Apple macOS < 11.0.1, 10.15.7 Supplemental Update, 10.15.7 Update
Apple watchOS < 5.3.9, 6.0 to < 6.2.9, 7.0 to < 7.1
Timeline
2020-12-09: disclosed: Initial NVD analysis and disclosure
2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2020-11-05: patched: Addressed in various OS updates including iOS 14.2 and macOS Big Sur 11.0.1
2021-11-03: exploited: Reported as exploited in the wild per CISA KEV catalog entry