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NVD / CVE Program· CNA redhat

CVE-2017-5885: 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…

CriticalCVSS 9.8 · v3.0—No exploit Fix available

Noroxi assessment

Priority: Plan (action score 40/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 4.9% (FIRST EPSS); higher than 92.3% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: gtk-vnc (Alpine:v3.10) 0.7.0-r0; gtk-vnc (Debian:12) 0.6.0-3; gtk-vnc (Debian:7) 0.5.0-3.1+deb7u1.

Add it to your regular patch cycle. Upgrade to gtk-vnc (Alpine:v3.10) 0.7.0-r0; gtk-vnc (Debian:12) 0.6.0-3; gtk-vnc (Debian:7) 0.5.0-3.1+deb7u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Feb 28, 2017
Updated
Jun 16, 2026
EPSS
4.9% · 92th percentile

Report tools

JSON

Action score

40

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 4.9%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
fedoraprojectfedora
gnomegtk-vnc

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • fedoraproject fedora25
  • gnome gtk-vncup to 0.6.0 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.10gtk-vncbefore 0.7.0-r00.7.0-r0
Debian:12gtk-vncbefore 0.6.0-30.6.0-3
Debian:7gtk-vncbefore 0.5.0-3.1+deb7u10.5.0-3.1+deb7u1
openSUSE:Tumbleweedgtk-vncbefore 1.2.0-1.41.2.0-1.4
Red Hat:enterprise_linux:7::clientgtk-vncbefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgtk-vnc-debuginfobefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgtk-vnc-develbefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgtk-vnc-pythonbefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgtk-vnc2before 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgtk-vnc2-develbefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgvncbefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgvnc-develbefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgvnc-toolsbefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgvncpulsebefore 0:0.7.0-2.el70:0.7.0-2.el7
Red Hat:enterprise_linux:7::clientgvncpulse-develbefore 0:0.7.0-2.el70:0.7.0-2.el7
SUSE:HPE Helion OpenStack 8gtk-vncbefore 0.6.0-11.3.10.6.0-11.3.1
SUSE:HPE Helion OpenStack 8gtk-vnc2before 0.6.0-11.3.10.6.0-11.3.1

Same product

fedoraproject: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-1111DHCP packages in Red Hat Enterprise Linux 6 and 7, Fedora 28, and earlier are vulnerable to a command injection flaw in the NetworkManager…
    59Plan
  • CVE-2024-24576Rusts's `std::process::Command` did not properly escape arguments of batch files on Windows
    46Plan
  • CVE-2016-7167Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape functions in libcurl…
    43Plan

Published before and after this one in the same product

  • ← EarlierCVE-2016-8568Feb 3, 2017 · The git_commit_message function in oid.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (out-of-bounds read)…
    23Monitor
  • ← EarlierCVE-2017-5884Feb 28, 2017 · gtk-vnc before 0.7.0 does not properly check boundaries of subrectangle-containing tiles, which allows remote servers to execute arbitrary…
    32Monitor
  • Later →CVE-2016-7970Mar 3, 2017 · Buffer overflow in the calc_coeff function in libass/ass_blur.c in libass before 0.13.4 allows remote attackers to cause a denial of…
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:gtk-vnc0.7.0-r0 · Alpine:v3.10Package registry (OSV)
debian:gtk-vnc0.6.0-3 · Debian:12Package registry (OSV)
opensuse:gtk-vnc1.2.0-1.4 · openSUSE:TumbleweedPackage registry (OSV)
red hat:gtk-vnc0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gtk-vnc-debuginfo0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gtk-vnc-devel0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gtk-vnc-python0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gtk-vnc20:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gtk-vnc2-devel0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gvnc0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gvnc-devel0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gvnc-tools0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gvncpulse0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:gvncpulse-devel0:0.7.0-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:gtk-vnc0.6.0-11.3.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:gtk-vnc20.6.0-11.3.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Not on record for this CVE: EPSS history · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records