xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow

A flaw was found in the glamorfontget function of the xorg-x11-server. This vulnerability, a heap buffer overflow, occurs when the server processes a specially crafted PCF font file where individual glyph metrics exceed the declared maximum bounds. An authenticated X client can exploit this by...

libXfont2: PCF Font Parsing Heap Buffer Overflow

A flaw was found in libXfont2. A specially crafted PCF Portable Compiled Format font file, when processed by libXfont2, can lead to a buffer overflow. This occurs because the font parsing process does not properly validate the size of a bitmap buffer against the glyph metrics provided in the...

Updated libxfont2 packages fix security vulnerabilities

The updated packages fix security vulnerabilities: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow. CVE-2026-56001 PCF Font Parsing Heap Buffer Overflow. CVE-2026-56002 computeProps Property Buffer Heap Buffer Overflow. CVE-2026-56003...

libXfont2: computeProps Property Buffer Heap Buffer Overflow

A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server...

CVE-2026-56003

A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server...

USN-8560-1: libXfont vulnerabilities

It was discovered that libXfont incorrectly handled scaling bitmap fonts, leading to a heap buffer overflow. An attacker able to access the X server could use this issue to cause libXfont to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2026-56001 It was...

CVE-2026-56002 libXfont2 PCF Font Parsing Heap Buffer Overflow

A heap bufferflow in pcfReadFont due to missing glyph bounds checking in libXfont2 before 2.0.8 allows attackers authenticated as X client to execute code within the X server...

PYSEC-2026-2253

Pillow is a Python imaging library. Prior to 12.3.0, PIL/PcfFontFile.py loadbitmaps read glyph dimensions from the PCF METRICS section and passed them directly to Image.frombytes without calling Image.decompressionbombcheck, allowing crafted PCF font data to cause excessive memory allocation. Thi...

EUVD-2026-26000

A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fzsubsetcffforgids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly...

CVE-2026-33812 Excessive memory allocation when decoding malicious SFNT in golang.org/x/image

Parsing a malicious font file can cause excessive memory allocation...

[SECURITY] Fedora 42 Update: fonttools-4.61.0-1.fc42

fontTools is a library for manipulating fonts, written in Python. The project includes the TTX tool, that can convert TrueType and OpenType fonts to and fr om an XML text format, which is also called TTX. It supports TrueType, OpenType, AFM and to an extent Type 1 and some Mac-specific formats...

EUVD-2017-12082

Malware in sbrugna...

EUVD-2010-3986

Malware in sbrugna...

EUVD-2014-9478

Malware in sbrugna...

EUVD-2023-39180

Malicious code in bioql PyPI...

Linux Distros Unpatched Vulnerability : CVE-2022-2601

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A buffer overflow was found in grubfontconstructglyph. A malicious crafted pf2 font can lead to an overflow when calculating the maxglyphsize value, allocating ...

CVE-2023-35177

Certain HP LaserJet Pro print products are potentially vulnerable to a stack-based buffer overflow related to the compact font format parser...

[SECURITY] Fedora 41 Update: woff-0.20091126-47.fc41

Provides the sfnt2woff and woff2sfnt command-line tools for encoding and decoding Web Open Font Format WOFF files...

[SECURITY] Fedora 42 Update: woff-0.20091126-47.fc42

Provides the sfnt2woff and woff2sfnt command-line tools for encoding and decoding Web Open Font Format WOFF files...

Ubuntu 20.04 LTS / 22.04 LTS / 23.10 / 24.04 LTS : Ghostscript vulnerabilities (USN-6835-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.10 / 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6835-1 advisory. It was discovered that Ghostscript did not properly restrict eexec seeds to those specified by the Type 1 Font Format...