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...

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...

libXfont2 security update

An update is available for libXfont2. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list X.Org X11 libXfont2 runtime library Security Fixes: libXfont2:...

RockyLinux 10 : libXfont2 (RLSA-2026:47079)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:47079 advisory. libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001 libXfont2: PCF Font Parsing Heap Buffer Overflow CVE-2026-56002...

SUSE CVE-2026-56001

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

CVE-2026-56001

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...

CVE-2026-56001

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

UBUNTU-CVE-2026-56001

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

CVE-2026-56001

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

CVE-2026-56001 libXfont2 BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

CVE-2026-56001

Affects libXfont2 (BitmapScaleBitmaps). The vulnerability is a heap buffer overflow caused by an overflowing 32-bit size in BitmapScaleBitmaps, exploitable by an attacker able to access the X Server to execute code within the X server context. Affected versions are libXfont2 before 2.0.8; remedia...

CVE-2026-56001

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

CVE-2026-56001

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

EUVD-2026-42210

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

CVE-2026-56001 libXfont2 BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont...

Security update for libXfont2

This update for libXfont2 fixes the following issues CVE-2026-56001: integer overflow in BitmapScaleBitmaps can lead to a heap buffer overflow bsc1269018. CVE-2026-56002: insufficient checks in pcfReadFont can lead to a heap buffer overflow bsc1269019. CVE-2026-56003: missing bounds check in...

SUSE-SU-2026:2794-1 Security update for libXfont2

This update for libXfont2 fixes the following issues - CVE-2026-56001: integer overflow in BitmapScaleBitmaps can lead to a heap buffer overflow bsc1269018. - CVE-2026-56002: insufficient checks in pcfReadFont can lead to a heap buffer overflow bsc1269019. - CVE-2026-56003: missing bounds check i...

PT-2026-56383

Name of the Vulnerable Software and Affected Versions libXfont2 versions prior to 2.0.8 Description A heap-based buffer overflow exists in the BitmapScaleBitmaps function. The issue is caused by an integer overflow where a 32-bit size calculation wraps, resulting in an undersized heap allocation...