Input validation

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A...

Cross site scripting

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code...

Memory corruption

A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fixed in iOS 14.0 and iPadOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1, watchOS 7.0,...

Input validation

An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing maliciously crafted web content may lead to code executi...

Design/Logic Flaw

An out-of-bounds read issue existed in the curl. This issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafte...

CVE-2020-9926

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, iCloud for Windows 7.20, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing maliciously crafted...

CVE-2021-1818

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause unexpected application termination or...

CVE-2021-1818

CVE-2021-1818 is a logic‑level issue in Apple OS components that Apple fixed across macOS Big Sur 11.2, macOS Security Update 2021‑001 for Catalina and Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4, and iPadOS 14.4. Root cause: improved state management addressing a logic flaw. Impact: remote attacker...

CVE-2021-1879

CVE-2021-1879 affects Apple WebKit/WebKit-based parsing in iOS/iPadOS/watchOS (WebKit component). The issue is a cross-site scripting vulnerability triggered by processing malicious web content, potentially leading to universal XSS. Root cause: improved management of object lifetimes in WebKit/CS...

CVE-2021-1879

This issue was addressed by improved management of object lifetimes. This issue is fixed in iOS 12.5.2, iOS 14.4.2 and iPadOS 14.4.2, watchOS 7.3.3. Processing maliciously crafted web content may lead to universal cross site scripting. Apple is aware of a report that this issue may have been...

CVE-2021-1844

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 v. 14610.4.3.1.7 and 15610.4.3.1.7, watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution...

CVE-2021-1844

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 v. 14610.4.3.1.7 and 15610.4.3.1.7, watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution...

CVE-2021-1844

CVE-2021-1844 is a memory corruption vulnerability in WebKit/WebKitGTK/WebKitGTK-related workflows triggered by processing malicious web content, with potential arbitrary code execution. Affected components include WebKit/WebKitGTK in Apple products (Safari 14.0.3 and iOS/iPadOS/macOS updates) an...

CVE-2021-1844

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 v. 14610.4.3.1.7 and 15610.4.3.1.7, watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution...

CVE-2021-1870

CVE-2021-1870 affects WebKitGTK/WebKitGTK-based packages (e.g., Arch Linux webkitgtk4) prior to version 2.30.6. A remote attacker could craft web content to cause arbitrary code execution. Upstream fix is in 2.30.6; Arch advisories (ASA-202103-24/25) and CVE listings confirm the vulnerability and...

CVE-2021-1870

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...

CVE-2021-1870

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...

CVE-2021-1801

This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Maliciously crafted web content may violate iframe sandboxing policy...

CVE-2021-1801

This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Maliciously crafted web content may violate iframe sandboxing policy...

CVE-2021-1799

The CVE-2021-1799 entry describes a port redirection issue in WebKitGTK/WebKit allowing a malicious website to access restricted ports on arbitrary servers. Connected advisories confirm this impacts WebKitGTK and WPE WebKit upstream, with fixes implemented in WebKitGTK prior to 2.30.6 (and in ven...