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...

libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow

A flaw was found in libXfont2. In the BitmapScaleBitmaps function, an integer overflow can occur when calculating the memory needed for font glyphs. This overflow leads to a heap buffer overflow, where a smaller-than-required memory buffer is allocated. A local attacker can exploit this by loadin...

WordPress Advanced Custom Fields: Font Awesome Field plugin <= 6.1.2 - Broken Access Control vulnerability

Broken Access Control vulnerability discovered by Ananda Dhakal Patchstack in WordPress Plugin Advanced Custom Fields: Font Awesome Field versions = 6.1.2...

CVE-2026-44950

A flaw was found in the libXfont2 font-server client. This heap buffer overflow vulnerability allows a malicious font server to send specially crafted glyph data. The fsreadglyphs function fails to properly validate the total size of the incoming data, leading to an overwrite of memory beyond the...

CVE-2026-59679

A flaw was found in the libXfont2 font-server client. A remote attacker, by operating a malicious font server, could exploit an out-of-bounds read/write vulnerability. This occurs because the client incorrectly handles font data, leading to an out-of-bounds memory access. This can lead to privile...

SUSE-SU-2026:23128-1 Security update for libXfont2

This update for libXfont2 fixes the following issues: - CVE-2026-44950: fsreadglyphs heap buffer overflow via cumulative glyph data overflow bsc1272661. - CVE-2026-59679: fsreadglyphs heap OOB read/write via encoding array index mismatch bsc1272660...

The vulnerability of the PDFium component in Google Chrome and Microsoft Edge web browsers allows a hacker to trigger a service failure.

The vulnerability of the PDFium component in Google Chrome and Microsoft Edge browsers is related to errors in HTTP requests processing. Exploiting this vulnerability can allow a malicious actor to cause service interruptions using a specially created font file...

EulerOS 2.0 SP13 : python-pillow (EulerOS-SA-2026-2992)

According to the versions of the python-pillow packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the...

The vulnerability of the Font component in Google Chrome and Microsoft Edge web browsers allows a hacker to trigger a service failure.

The vulnerability of the Font component in Google Chrome and Microsoft Edge relates to errors in HTTP request processing. Exploiting this vulnerability can allow a malicious actor to cause service interruptions through a specially created HTML page...

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...

UBUNTU-CVE-2026-59679

Font Server Client encoding Out-Of-Bounds Read/Write...

UBUNTU-CVE-2026-44950

Font Server Client Cumulative Glyph Data Heap Buffer Overflow...

RHEL 9 : xorg-x11-server-Xwayland (RHSA-2026:50718)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50718 advisory. Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer...

python-pillow: Pillow: Denial of Service via crafted BDF font file

A flaw was found in Pillow, a Python imaging library. This vulnerability allows a remote attacker to cause a Denial of Service DoS by providing a specially crafted BDF font file. The library's image processing function fails to properly validate dimensions from the font file, bypassing a critical...

python-pillow: Pillow: Denial of Service via excessive memory allocation when processing font files

A flaw was found in Pillow, a Python imaging library. When processing a specially crafted font file, the library's font compilation function does not adequately check for excessive memory allocation. This oversight allows a remote attacker to trigger an unreasonable consumption of system memory,...

python-pillow: Pillow: Denial of Service via crafted PCF font data

A flaw was found in Pillow, a Python imaging library. A remote attacker could exploit this vulnerability by providing specially crafted PCF font data. This data, when processed, can lead to excessive memory allocation because the library does not properly check for decompression bombs. The primar...

python-pillow: Pillow: Denial of Service via crafted PCF font data

A flaw was found in Pillow, a Python imaging library. A remote attacker could exploit this vulnerability by providing specially crafted PCF font data. This data, when processed, can lead to excessive memory allocation because the library does not properly check for decompression bombs. The primar...

python-pillow: Pillow: Denial of Service via excessive memory allocation when processing font files

A flaw was found in Pillow, a Python imaging library. When processing a specially crafted font file, the library's font compilation function does not adequately check for excessive memory allocation. This oversight allows a remote attacker to trigger an unreasonable consumption of system memory,...

python-pillow: Pillow: Denial of Service via crafted BDF font file

A flaw was found in Pillow, a Python imaging library. This vulnerability allows a remote attacker to cause a Denial of Service DoS by providing a specially crafted BDF font file. The library's image processing function fails to properly validate dimensions from the font file, bypassing a critical...

Important: Red Hat Security Advisory: xorg-x11-server security update

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 7 Extended Lifecycle 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 severity rating, is...