TencentOS Server 3: libXfont2 (TSSA-2026:0818)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0818 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

RHEL 9 : libXfont2 (RHSA-2026:51059)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:51059 advisory. X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001...

RHEL 8 : libXfont2 (RHSA-2026:51060)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:51060 advisory. X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001...

RHEL 10 : libXfont2 (RHSA-2026:51061)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:51061 advisory. X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001...

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. Patch Instructions: To install this SUSE update use...

SUSE-SU-2026:3500-1 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...

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. Patch Instructions: To install this SUSE update use...

SUSE-SU-2026:3499-1 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...

PT-2026-69024

Name of the Vulnerable Software and Affected Versions libXfont2 versions prior to 2.0.7-3.1 Description A heap buffer overflow occurs in the Font Server Client when handling cumulative glyph data. A heap buffer overflow is a memory corruption issue where a program writes more data to a...

PT-2026-69028

Name of the Vulnerable Software and Affected Versions libXfont2 versions prior to 2.0.7-3.1 Description A font server client issue allows for out-of-bounds read and write operations. Out-of-bounds read/write occurs when a program reads or writes data outside the boundaries of the intended buffer,...

libXfont2 -- multiple vulnerabilities

Zhixi "Jace" Sun, independent security researcher reports: CVE-2026-44950: Font Server Client Cumulative Glyph Data Heap Buffer Overflow CVE-2026-59679: Font Server Client encoding Out-Of-Bounds Read/Write...

RHSA-2026:47084 Red Hat Security Advisory: libXfont2 security update

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libXfont2 security update

An update is available for libXfont2. This update affects Rocky Linux 9. 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:...

RLSA-2026:47084 Important: libXfont2 security update

X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001 libXfont2: PCF Font Parsing Heap Buffer Overflow CVE-2026-56002 For more details about the security issues, including the impact, a CVSS score, acknowledgments, a...

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...

Important: Red Hat Security Advisory: libXfont2 security update

An update for libXfont2 is now available for Red Hat Enterprise Linux 9. 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 available for each vulnerability from...

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...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias...

RHEL 9 : libXfont2 (RHSA-2026:47084)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:47084 advisory. X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001...

RockyLinux 9 : libXfont2 (RLSA-2026:47084)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:47084 advisory. libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001 libXfont2: PCF Font Parsing Heap Buffer Overflow CVE-2026-56002 Tenab...