CVE-2021-1871
CVE-2021-1871
In short
A logic flaw in Apple systems allowed remote attackers to run malicious code without user interaction. This critical vulnerability was being actively exploited in the wild.
Technical detail
A logic issue in macOS and iOS permitted remote code execution via an unspecified vector, affecting Big Sur, Catalina, and Mojave. The vulnerability required no user interaction and was actively exploited; Apple addressed it through improved input restrictions and validation logic.
Summary generated and translated by AI from the official description.
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/https://support.apple.com/en-us/HT212146https://support.apple.com/en-us/HT212147https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1871https://www.debian.org/security/2021/dsa-4923