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CVE-2020-29624

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 watchOS 7.2, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, iOS 14.3 and iPadOS 14.3, tvOS 14.3. Processing a maliciously crafted font file may lead to arbitrary code execution.

Related Files

Apple CoreText libFontParser.dylib Stack Corruption
Posted Feb 5, 2021
Authored by Google Security Research, Tim Willis

Apple CoreText libFontParser.dylib suffers from a stack corruption vulnerability in the handling of /BlendDesignPositions Type 1 objects.

tags | exploit
systems | apple
advisories | CVE-2020-0938, CVE-2020-29624
SHA-256 | 20846ff276b0918588c20eba4f03a51e239d0c24a7bc30e422ba7d6a2a943720
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