Multiple integer overflows in the (1) vnc_connection_server_message and (2)…
Priority MEDIUM 50CWE-190Published · 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
- Partial Red Hat: 6 fixed, 3 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
Multiple integer overflows in the (1) vnc_connection_server_message and (2) vnc_color_map_set functions in gtk-vnc before 0.7.0 allow remote servers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving SetColorMapEntries, which triggers a buffer overflow.
Why it matters now
EPSS 0.04985 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 6 fixed, 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* | 25 | Vulnerable | Fedoraproject |
| cpe:2.3:a:gnome:gtk-vnc:*:*:*:*:*:*:*:* | up to 0.6.0 | Vulnerable | GNOME |
- cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* Versions 25 Vulnerable ·Fedoraproject
- cpe:2.3:a:gnome:gtk-vnc:*:*:*:*:*:*:*:* Versions up to 0.6.0 Vulnerable ·GNOME
Remediation
Red Hat 1 advisory
- RHSA-2017:2258 Released 2017-08-01 · Red Hat rating Moderategtk-vnc security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) gtk-vnc-0.7.0-2.el7, gtk-vnc2-0.7.0-2.el7, gvnc-0.7.0-2.el7
- Red Hat Enterprise Linux Client Optional (v. 7) gtk-vnc-0.7.0-2.el7, gtk-vnc-devel-0.7.0-2.el7, gtk-vnc-python-0.7.0-2.el7 +5
- Red Hat Enterprise Linux Server (v. 7) gtk-vnc-0.7.0-2.el7, gtk-vnc2-0.7.0-2.el7, gtk-vnc2-0.7.0-2.el7.ppc +2
- Red Hat Enterprise Linux Server Optional (v. 7) gtk-vnc-0.7.0-2.el7, gtk-vnc-0.7.0-2.el7.ppc, gtk-vnc-devel-0.7.0-2.el7 +11
- Red Hat Enterprise Linux Workstation (v. 7) gtk-vnc-0.7.0-2.el7, gtk-vnc2-0.7.0-2.el7, gvnc-0.7.0-2.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) gtk-vnc-0.7.0-2.el7, gtk-vnc-devel-0.7.0-2.el7, gtk-vnc-python-0.7.0-2.el7 +5
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Virtualization 3 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:2258 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:2258 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:2258 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:2258 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:2258 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:2258 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-5885
- 2026-10-03 Alias added: GHSA-m2p7-mwp9-g3w6
References
Sources
- CVE-2017-5885 · CVE Program
- CVE-2017-5885 · NVD
- FIRST EPSS
- GHSA-m2p7-mwp9-g3w6 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-5885 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences