FKIE_CVE-2026-59679
Vulnerability from fkie_nvd - Published: 2026-09-10 09:17 - Updated: 2026-09-10 15:43
Severity
Summary
fs_read_glyphs() in the libXfont2 font-server client (src/fc/fserve.c) indexes the per-character encoding[] array using num_chars from the FS_QueryXBitmaps16 reply, but that array was allocated with a size derived from num_extents in the separate FS_QueryXExtents16 reply. The two CARD32 fields are never cross-checked.
A malicious or compromised font server can send a small num_extents (e.g. 1) in the extents reply, then a large num_chars (e.g. 100000) in the bitmaps reply. This causes attacker-controlled out-of-bounds heap read and writes.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Container suse/kiosk/tigervnc-x11vnc:1.14-63.8",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Container suse/kiosk/xorg:21.1-83.7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Azure-3P",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-BYOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-BYOS-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-BYOS-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-BYOS-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Hardened",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Hardened-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Hardened-BYOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Hardened-BYOS-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Hardened-BYOS-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Hardened-BYOS-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Hardened-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAP-Hardened-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAPCAL",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAPCAL-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAPCAL-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP6-SAPCAL-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-Azure-3P",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-BYOS-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-BYOS-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-BYOS-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-GCE-3P",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-Hardened-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-Hardened-BYOS-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-Hardened-BYOS-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-Hardened-BYOS-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAP-Hardened-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAPCAL-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAPCAL-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES15-SP7-SAPCAL-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES-SAP-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES-SAP-Azure-3P",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES-SAP-BYOS-Azure",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES-SAP-BYOS-EC2",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES-SAP-BYOS-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES-SAP-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES-SAP-GCE-3P",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES-SAPCAL-GCE",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES12-SP5-Azure-SAP-BYOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES12-SP5-Azure-SAP-On-Demand",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES12-SP5-EC2-SAP-BYOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES12-SP5-EC2-SAP-On-Demand",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES12-SP5-GCE-SAP-BYOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "Image SLES12-SP5-GCE-SAP-On-Demand",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2",
"product": "SUSE Liberty Linux 10",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.6-5.el10_2.3",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Liberty Linux 10",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.6-5.el10_2.3",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2",
"product": "SUSE Liberty Linux 8",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-2.el8_10.3",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Liberty Linux 8",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-2.el8_10.3",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2",
"product": "SUSE Liberty Linux 9",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-12.el9_8.3",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Liberty Linux 9",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-12.el9_8.3",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Desktop 15 SP7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Desktop 15 SP7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Module for Basesystem 15 SP7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Module for Basesystem 15 SP7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server 15 SP7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server 15 SP7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server for SAP Applications 15 SP7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server for SAP Applications 15 SP7",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server 12 SP5-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server 15 SP4-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server 15 SP4-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server 15 SP5-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server 15 SP5-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server 15 SP6-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server 15 SP6-LTSS",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server 16.0",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server 16.0",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server for SAP applications 16.0",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server for SAP applications 16.0",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server for SAP Applications 15 SP4",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server for SAP Applications 15 SP4",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server for SAP Applications 15 SP5",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server for SAP Applications 15 SP5",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Linux Enterprise Server for SAP Applications 15 SP6",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Linux Enterprise Server for SAP Applications 15 SP6",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Manager Proxy LTS 4.3",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Manager Proxy LTS 4.3",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Manager Retail Branch Server LTS 4.3",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Manager Retail Branch Server LTS 4.3",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "SUSE Manager Server LTS 4.3",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "SUSE Manager Server LTS 4.3",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.3-150000.3.6.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "openSUSE Leap 16.0",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "openSUSE Leap 16.0",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-160000.5.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2",
"product": "openSUSE Tumbleweed",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-3.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-2-32bit",
"product": "openSUSE Tumbleweed",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-3.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel",
"product": "openSUSE Tumbleweed",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-3.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2-devel-32bit",
"product": "openSUSE Tumbleweed",
"vendor": "SUSE",
"versions": [
{
"lessThan": "2.0.7-3.1",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "libXfont2",
"product": "libXfont2",
"vendor": "libXfont2",
"versions": [
{
"lessThanOrEqual": "2.0.8",
"status": "affected",
"version": "?",
"versionType": "custom"
}
]
}
],
"source": "meissner@suse.de"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "fs_read_glyphs() in the libXfont2 font-server client (src/fc/fserve.c) indexes the per-character encoding[] array using num_chars from the FS_QueryXBitmaps16 reply, but that array was allocated with a size derived from num_extents in the separate FS_QueryXExtents16 reply. The two CARD32 fields are never cross-checked.\nA malicious or compromised font server can send a small num_extents (e.g. 1) in the extents reply, then a large num_chars (e.g. 100000) in the bitmaps reply. This causes attacker-controlled out-of-bounds heap read and writes."
}
],
"id": "CVE-2026-59679",
"lastModified": "2026-09-10T15:43:03.760",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.0,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 6.0,
"source": "meissner@suse.de",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "meissner@suse.de",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-59679",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-10T12:44:48.987855Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-10T09:17:02.883",
"references": [
{
"source": "meissner@suse.de",
"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-59679"
}
],
"sourceIdentifier": "meissner@suse.de",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…