Integer overflow in GNOME Gtk-Vnc
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 servers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving SetColorMapEntries, which triggers a buffer overflow.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.050 (92.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.050 · change: +0.007
Affected products
- GNOME Gtk-Vnc
- Fedoraproject Fedora — versions 25
Weakness classification (CWE)
References
- git.gnome.org/browse/gtk-vnc/commit/ (Patch, Issue Tracking, Vendor Advisory)
- www.openwall.com/lists/oss-security/2017/02/03/5 (mailing-list, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/96016 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2017:2258 (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.openwall.com/lists/oss-security/2017/02/05/5 (mailing-list, Mailing List, Third Party Advisory)
- bugzilla.gnome.org/show_bug.cgi (Exploit, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-5885?
- CVE-2017-5885 is a critical-severity vulnerability in GNOME Gtk-Vnc, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-02-28.
- How severe is CVE-2017-5885?
- Critical severity. CVSS v3 base score is 9.8 out of 10.