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gtk-vnc 0.4.2 and older doesn't check framebuffer boundaries correctly when updating…

Priority MEDIUM 45CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

gtk-vnc 0.4.2 and older doesn't check framebuffer boundaries correctly when updating framebuffer which may lead to memory corruption when rendering

Why it matters now

EPSS 0.0158 75th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gnome:gtk-vnc:0.4.2:*:*:*:*:*:*:*0.4.2VulnerableGNOME
  • cpe:2.3:a:gnome:gtk-vnc:0.4.2:*:*:*:*:*:*:* Versions 0.4.2 Vulnerable ·GNOME

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Not affected: 2 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Virtualization 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-1000044
  2. 2026-10-03 Alias added: GHSA-j9j7-wxww-4jq7

References

  • TI-2017-03819 Multiple integer overflows in the (1) vnc_connection_server_message and (2)… CVSS 3.0CRITICAL 9.8
  • TI-2017-03818 gtk-vnc before 0.7.0 does not properly check boundaries of subrectangle-containing tiles… CVSS 3.0HIGH 7.8

Sources