CVE-2017-5885: Integer Overflow
First published: Fri Feb 03 2017(Updated: )
It was found that vnc_connection_server_message() and vnc_color_map_set() functions do not check for integer overflow properly, leading to a malicious server being able to overwrite parts of the client memory, possibly leading to remote code execution under privileges of user running the VNC client. Upstream bug: <a href="https://bugzilla.gnome.org/show_bug.cgi?id=778050">https://bugzilla.gnome.org/show_bug.cgi?id=778050</a> Upstream patch: <a href="https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590">https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedoraproject Fedora | =25 | |
| Gnome Gtk-vnc | <=0.6.0 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2017/02/03/5
- http://www.openwall.com/lists/oss-security/2017/02/05/5
- http://www.securityfocus.com/bid/96016
- https://access.redhat.com/errata/RHSA-2017:2258
- https://bugzilla.gnome.org/show_bug.cgi?id=778050
- https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590fcb7bae4ce6e7344963e
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LGPQ5MQR6SN4DYTEFACHP2PP5RR26KYK/
- https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1418955
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1418956
- http://openwall.com/lists/oss-security/2017/02/05/5
- https://access.redhat.com/security/cve/CVE-2017-5885
- https://bugzilla.redhat.com/show_bug.cgi?id=1418952
- collector/nvd-index
- agent/severity
- agent/author
- agent/event
- agent/references
- agent/weakness
- agent/type
- agent/description
- agent/last-modified-date
- agent/remedy
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2017-5885
- agent/trending
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/25
- vendor/gnome
- canonical/gnome gtk-vnc
- version/gnome gtk-vnc/0.6.0