VulnerabilityAnalyzed
CVE-2021-1789
Apple Multiple Products Type Confusion Vulnerability
KEVHIGH 8.8EPSS 14.5%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 25 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 14.48% probability · 96th percentile
- CISA KEV
- Listed 4 May 2022 · due 25 May 2022
- Weakness
- CWE-843
- Affected
- apple/ipados · apple/iphone os · apple/mac os x · apple/macos · apple/tvos · apple/watchos · fedoraproject/fedora · webkitgtk/webkitgtk
- Source
- product-security@apple.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-1789
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/Broken Link, Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/Broken Link, Mailing List
- https://security.gentoo.org/glsa/202104-03Third Party Advisory
- https://support.apple.com/en-us/HT212146Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212147Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212148Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212149Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212152Release Notes, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/Broken Link, Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/Broken Link, Mailing List
- https://security.gentoo.org/glsa/202104-03Third Party Advisory
- https://support.apple.com/en-us/HT212146Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212147Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212148Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212149Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212152Release Notes, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1789US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.