CVE-2025-27363-proof-of-concept

CVE-2025-27363에 대한 개념 증명으로, FreeType 2.13.0을 충돌시킵니다. 가변 글꼴인 Roboto Flex를 수정하여 "%" 문자글리프 8가 이제 0xfffd 하위 글리프로 구성된 합성 글리프가 되도록 합니다. 수정된 글꼴을 FreeType 2.13.0수정 이전 마지막 버전으로 렌더링하면 충돌이 발생하며, ASAN은 loadtruetypeglyph에서 힙 버퍼 오버플로를 감지합니다: $ lldb ../repos2/freetype-demos/build2/ftmulti -- ./rf2.ttf lldb targ...

Rocky Linux 8 [CIQ] Security Update: freetype / freetype-debuginfo / freetype-debugsource / etc (crlsa-2025_3421)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20253421 advisory. freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files CVE-2025-27363 Tenable has extracted the...

AlmaLinux 9.2 [TuxCare] Security Update: freetype / freetype-demos / freetype-devel (ALMALINUX9.2:CLSA-2025:1745956171)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1745956171 advisory. - An out of bounds write exists in FreeType versions 2.13.0 and below newer versions of FreeType are not vulnerable when attempting to parse...

CentOS Linux 7 [TuxCare] Security Update: freetype / freetype-demos / freetype-devel (CENTOS7:CLSA-2025:1742926404)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2025:1742926404 advisory. - An out of bounds write exists in FreeType versions 2.13.0 and below newer versions of FreeType are not vulnerable when attempting to parse font...

EUVD-2026-55260

GNU Emacs for Android contains an off-by-one error in the gvar table parser in src/sfnt.c. The shared-coordinate index boundary check in sfntvarysimpleglyph and sfntvarycompoundglyph uses a strict greater-than comparison instead of greater-than-or-equal, allowing a crafted TrueType variable font ...

CVE-2026-71391 Off-by-One Error in GNU Emacs for Android

GNU Emacs for Android contains an off-by-one error in the gvar table parser in src/sfnt.c. The shared-coordinate index boundary check in sfntvarysimpleglyph and sfntvarycompoundglyph uses a strict greater-than comparison instead of greater-than-or-equal, allowing a crafted TrueType variable font ...

CVE-2026-71391: Off-by-one Error

GNU Emacs for Android contains an off-by-one error in the gvar table parser in src/sfnt.c. The shared-coordinate index boundary check in sfntvarysimpleglyph and sfntvarycompoundglyph uses a strict greater-than comparison instead of greater-than-or-equal, allowing a crafted TrueType variable font ...

PT-2026-62024

It was discovered that FreeType incorrectly handled certain variable font files. An attacker could possibly use this issue to cause FreeType to crash, resulting in a denial of service, or obtain sensitive information...

PT-2026-38075

An integer overflow in the tt var load item variation store function of the Freetype library in versions 2.13.2 and 2.13.3 may allow for an out of bounds read operation when parsing HVAR/VVAR/MVAR tables in OpenType variable fonts. This issue is fixed in version 2.14.2...

Exploit for XML Injection (aka Blind XPath Injection) in Fonttools

fontTools varLib CVE-2025-66034 Exploit...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the ttvarloaditemvariationstore function when processing HVAR, VVAR, or MVAR tables in OpenType variable fonts. An attacker can access sensitive information or cause a crash by enticing a user to open a specially...

MiracleLinux 8 : freetype-2.9.1-9.el8.ML.1 (AXSA:2025-9777:02)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2025-9777:02 advisory. An out of bounds write exists in FreeType versions 2.13.0 and below newer versions of FreeType are not vulnerable when attempting to parse font subglyph...

RockyLinux 9 : freetype (RLSA-2025:3407)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2025:3407 advisory. freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files CVE-2025-27363 Tenable has extracted the...

RLSA-2025:3407 Important: freetype security update

FreeType is a free, high-quality, portable font engine that can open and manage font files. FreeType loads, hints, and renders individual glyphs efficiently. Security Fixes: freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files...

RLSA-2025:3421 Important: freetype security update

FreeType is a free, high-quality, portable font engine that can open and manage font files. FreeType loads, hints, and renders individual glyphs efficiently. Security Fixes: freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files...

Moderate: open-vm-tools security update

The Open Virtual Machine Tools are the open source implementation of the VMware Tools. They are a set of guest operating system virtualization components that enhance performance and user experience of virtual machines. Security Fixes: open-vm-tools:A malicious actor with non-administrative...

Important: Red Hat Security Advisory: spice-client-win security update

An update for spice-client-win is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.4 Telecommunications Update Service. Red Hat Product Security has rated this...

Important: Red Hat Security Advisory: spice-client-win security update

An update for spice-client-win is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Red Hat Product Security has rated this...

Important: Red Hat Security Advisory: mingw-freetype and spice-client-win security update

An update for mingw-freetype and spice-client-win is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed...

freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files

A flaw was found in FreeType. In affected versions, an out-of-bounds write condition may be triggered when attempting to parse font subglyph structures related to TrueType GX and variable font files. The vulnerable code assigns a signed short value to an unsigned long and then adds a static value...