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CVE-2017-5885

26
FAUCET Score

CVE-2017-5885 describes multiple integer overflows in the gtk-vnc library, affecting versions prior to 0.7.0, specifically impacting Fedora and GNOME gtk-vnc implementations. This critical vulnerability (CVSS 9.8) allows unauthenticated remote attackers to trigger a denial of service or potentially execute arbitrary code through crafted SetColorMapEntries, leading to a buffer overflow. While no public exploits, Metasploit modules, or active exploitation have been observed, the high severity and remote attack vector warrant attention. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
25CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*
<= 0.6.0CPE matchmatch criteria
cpe:2.3:a:gnome:gtk-vnc:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.98%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0498 is in the 85th percentile among its peer group of 36,862 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: gtk-vnc-0:0.7.0-2.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gtk-vnc
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: gtk-vnc
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Virtualization 3Fixed in: mingw-virt-viewer

Vendor Advisories (1)

redhatCVE-2017-5885Low

gtk-vnc: Integer overflow when processing SetColorMapEntries

Feb 1, 2017

References

access.redhat.com / errata/RHSA-2017:2258
bugzilla.gnome.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
git.gnome.org / browse/gtk-vnc/commit
Issue TrackingPatchVendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/LGPQ5MQR6SN4DYTEFACHP2PP5RR26KYK
openwall.com / lists/oss-security/2017/02/03/5
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2017/02/05/5
Mailing ListThird Party Advisory
securityfocus.com / bid/96016
Third Party AdvisoryVDB Entry