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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-59679

fs_read_glyphs() heap OOB read/write via encoding array index mismatch in libXfont2

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Status
Published
Published
Updated
Assigning organization
suse

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

SUSE Container suse/kiosk/tigervnc-x11vnc:1.14-63.8

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Container suse/kiosk/xorg:21.1-83.7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Azure-3P

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-BYOS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-BYOS-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-BYOS-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-BYOS-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Hardened

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Hardened-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Hardened-BYOS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Hardened-BYOS-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Hardened-BYOS-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Hardened-BYOS-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Hardened-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAP-Hardened-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAPCAL

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAPCAL-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAPCAL-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP6-SAPCAL-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-Azure-3P

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-BYOS-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-BYOS-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-BYOS-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-GCE-3P

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-Hardened-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-Hardened-BYOS-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-Hardened-BYOS-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-Hardened-BYOS-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAP-Hardened-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAPCAL-Azure

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAPCAL-EC2

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES15-SP7-SAPCAL-GCE

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE Image SLES-SAP-Azure

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE Image SLES-SAP-Azure-3P

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE Image SLES-SAP-BYOS-Azure

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE Image SLES-SAP-BYOS-EC2

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE Image SLES-SAP-BYOS-GCE

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE Image SLES-SAP-GCE

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE Image SLES-SAP-GCE-3P

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE Image SLES-SAPCAL-GCE

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE Image SLES12-SP5-Azure-SAP-BYOS

Default version status: unaffected

  • ? to < 2.0.3-3.6.1affected

SUSE Image SLES12-SP5-Azure-SAP-On-Demand

Default version status: unaffected

  • ? to < 2.0.3-3.6.1affected

SUSE Image SLES12-SP5-EC2-SAP-BYOS

Default version status: unaffected

  • ? to < 2.0.3-3.6.1affected

SUSE Image SLES12-SP5-EC2-SAP-On-Demand

Default version status: unaffected

  • ? to < 2.0.3-3.6.1affected

SUSE Image SLES12-SP5-GCE-SAP-BYOS

Default version status: unaffected

  • ? to < 2.0.3-3.6.1affected

SUSE Image SLES12-SP5-GCE-SAP-On-Demand

Default version status: unaffected

  • ? to < 2.0.3-3.6.1affected

SUSE SUSE Liberty Linux 10

Default version status: unaffected

  • ? to < 2.0.6-5.el10_2.3affected

SUSE SUSE Liberty Linux 10

Default version status: unaffected

  • ? to < 2.0.6-5.el10_2.3affected

SUSE SUSE Liberty Linux 8

Default version status: unaffected

  • ? to < 2.0.3-2.el8_10.3affected

SUSE SUSE Liberty Linux 8

Default version status: unaffected

  • ? to < 2.0.3-2.el8_10.3affected

SUSE SUSE Liberty Linux 9

Default version status: unaffected

  • ? to < 2.0.3-12.el9_8.3affected

SUSE SUSE Liberty Linux 9

Default version status: unaffected

  • ? to < 2.0.3-12.el9_8.3affected

SUSE SUSE Linux Enterprise Desktop 15 SP7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Desktop 15 SP7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Module for Basesystem 15 SP7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Module for Basesystem 15 SP7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 15 SP7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 15 SP7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server for SAP Applications 15 SP7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server for SAP Applications 15 SP7

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 12 SP5-LTSS

Default version status: unaffected

  • ? to < 2.0.3-3.6.1affected

SUSE SUSE Linux Enterprise Server 15 SP4-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 15 SP4-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 15 SP5-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 15 SP5-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 15 SP6-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 15 SP6-LTSS

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server 16.0

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE SUSE Linux Enterprise Server 16.0

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE SUSE Linux Enterprise Server for SAP applications 16.0

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE SUSE Linux Enterprise Server for SAP applications 16.0

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE SUSE Linux Enterprise Server LTSS Extended Security 12 SP5

Default version status: unaffected

  • ? to < 2.0.3-3.6.1affected

SUSE SUSE Linux Enterprise Server for SAP Applications 15 SP4

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server for SAP Applications 15 SP4

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server for SAP Applications 15 SP5

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server for SAP Applications 15 SP5

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server for SAP Applications 15 SP6

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Linux Enterprise Server for SAP Applications 15 SP6

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Manager Proxy LTS 4.3

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Manager Proxy LTS 4.3

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Manager Retail Branch Server LTS 4.3

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Manager Retail Branch Server LTS 4.3

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Manager Server LTS 4.3

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE SUSE Manager Server LTS 4.3

Default version status: unaffected

  • ? to < 2.0.3-150000.3.6.1affected

SUSE openSUSE Leap 16.0

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE openSUSE Leap 16.0

Default version status: unaffected

  • ? to < 2.0.7-160000.5.1affected

SUSE openSUSE Tumbleweed

Default version status: unaffected

  • ? to < 2.0.7-3.1affected

SUSE openSUSE Tumbleweed

Default version status: unaffected

  • ? to < 2.0.7-3.1affected

SUSE openSUSE Tumbleweed

Default version status: unaffected

  • ? to < 2.0.7-3.1affected

SUSE openSUSE Tumbleweed

Default version status: unaffected

  • ? to < 2.0.7-3.1affected

libXfont2 libXfont2

Default version status: unaffected

  • ? to ≤ 2.0.8affected

References