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CVE-2020-27943

Status Candidate

Overview

A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fixed in tvOS 14.3, iOS 14.3 and iPadOS 14.3, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.2. Processing a maliciously crafted font file may lead to arbitrary code execution.

Related Files

Apple CoreText libType1Scaler.dylib Buffer Overflow
Posted Feb 5, 2021
Authored by Google Security Research, Tim Willis

Apple CoreText libType1Scaler.dylib suffers from a heap buffer overflow vulnerability in the Counter Control Hints.

tags | exploit, overflow
systems | apple
advisories | CVE-2020-27943
SHA-256 | e9d0553c3318c8cfd5e3a7cef08c6780c862cd2e9728e3e931ac58bc5d0dd690
Apple Security Advisory 2020-12-14-7
Posted Dec 16, 2020
Authored by Apple | Site apple.com

Apple Security Advisory 2020-12-14-7 - tvOS 14.3 addresses code execution, information leakage, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, vulnerability, code execution
systems | apple
advisories | CVE-2020-15969, CVE-2020-27943, CVE-2020-27944, CVE-2020-27946, CVE-2020-27948, CVE-2020-29611, CVE-2020-29617, CVE-2020-29618, CVE-2020-29619
SHA-256 | cba3cae211c42ffc113d9df38d3465a1a2f76e16467ab03e096ec4551ff2c716
Apple Security Advisory 2020-12-14-5
Posted Dec 16, 2020
Authored by Apple | Site apple.com

Apple Security Advisory 2020-12-14-5 - watchOS 7.2 addresses code execution, information leakage, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, vulnerability, code execution
systems | apple
advisories | CVE-2020-15969, CVE-2020-27943, CVE-2020-27944, CVE-2020-27946, CVE-2020-27948, CVE-2020-27951, CVE-2020-29611, CVE-2020-29617, CVE-2020-29618, CVE-2020-29619
SHA-256 | 3703e58e75bd9e10f10074375d0243efa535fb63df8367a9b736509320bb2d67
Apple Security Advisory 2020-12-14-1
Posted Dec 16, 2020
Authored by Apple | Site apple.com

Apple Security Advisory 2020-12-14-1 - iOS 14.3 and iPadOS 14.3 addresses code execution, information leakage, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, vulnerability, code execution
systems | apple, ios
advisories | CVE-2020-15969, CVE-2020-27943, CVE-2020-27944, CVE-2020-27946, CVE-2020-27948, CVE-2020-27951, CVE-2020-29611, CVE-2020-29613, CVE-2020-29617, CVE-2020-29618, CVE-2020-29619
SHA-256 | d9b858ab5aa2eda3c5539369a3ab7fb01f5b4ed596345799a29ce1ba5ecc9bcf
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