217 matches found
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: 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...
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...
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...
Important: Red Hat Security Advisory: libXfont2 security update
An update for libXfont2 is now available for Red Hat Enterprise Linux 10.0 Extended Update 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 available...
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...
SUSE-SU-2026:23151-1 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...
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...
OPENSUSE-SU-2026:21539-1 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...
SUSE SLED15 / SLES15 Security Update : libXfont2 (SUSE-SU-2026:3500-1)
The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3500-1 advisory. - CVE-2026-44950: fsreadglyphs heap buffer overflow via cumulative glyph data overflow bsc1272661. -...
Fedora 44 : libXfont2 (2026-c864897d56)
The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-c864897d56 advisory. libXfont2 2.0.9 CVE-2026-59679, CVE-2026-44950 Tenable has extracted the preceding description block directly from the Fedora security advisory. Not...
OPENSUSE-SU-2026:11463-1 libXfont2-2-2.0.7-3.1 on GA media
These are all security issues fixed in the libXfont2-2-2.0.7-3.1 package on the GA media of openSUSE Tumbleweed...
SUSE SLES12 Security Update : libXfont2 (SUSE-SU-2026:3499-1)
The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3499-1 advisory. - CVE-2026-44950: fsreadglyphs heap buffer overflow via cumulative glyph data overflow bsc1272661. - CVE-2026-59679: fsreadglyphs heap OOB...
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...
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...