SARA / Free Tools / CVE / CVE-2017-5884

CVE-2017-5884 — gtk-vnc before 0

gtk-vnc before 0.7.0 does not properly check boundaries of subrectangle-containing tiles, which allows remote servers to execute arbitrary code via the src x, y coordinates in a crafted (1) rre, (2) hextile, or (3) copyrect tile.

CVSS

7.8 HIGH

EPSS

0.46% (top 36.00%)

CWE

—

Published

2017-02-28T18:59:00.407

Last modified

2026-05-13T00:24:29.033

CVSS vector

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

01What is this vulnerability?

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

Published: 2017-02-28T18:59:00.407
Last modified: 2026-05-13T00:24:29.033

09References

www.openwall.com — http://www.openwall.com/lists/oss-security/2017/02/03/5
www.openwall.com — http://www.openwall.com/lists/oss-security/2017/02/05/5
www.securityfocus.com — http://www.securityfocus.com/bid/96016
access.redhat.com — https://access.redhat.com/errata/RHSA-2017:2258
bugzilla.gnome.org — https://bugzilla.gnome.org/show_bug.cgi?id=778048
git.gnome.org — https://git.gnome.org/browse/gtk-vnc/commit/?id=ea0386933214c9178aaea9f2f85049ea…
lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
www.openwall.com — http://www.openwall.com/lists/oss-security/2017/02/03/5
www.openwall.com — http://www.openwall.com/lists/oss-security/2017/02/05/5
www.securityfocus.com — http://www.securityfocus.com/bid/96016

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