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...

OPENSUSE-SU-2026:21284-1 Security update for libXfont2

This update for libXfont2 fixes the following issues - CVE-2026-56001: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow bsc1269018. - CVE-2026-56002: PCF Font Parsing Heap Buffer Overflow bsc1269019. - CVE-2026-56003: computeProps Property Buffer Heap Buffer Overflow bsc1269020...

libXfont2 BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow

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[slackware-security] libXfont2

New libXfont2 packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/libXfont2-2.0.8-i586-1slack15.0.txz: Upgraded. This update fixes security issues: BitmapScaleBitmaps Integer Overflow Heap Buffer...

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...