CVE-2017-5885
CRITICAL severity · CVSS 9.8 · Integer overflow
9.8CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)5%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590fcb7bae4ce6e7344963e ↗
Additional information
- NVD record
- https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590fcb7bae4ce6e7344963ePatch
- https://bugzilla.gnome.org/show_bug.cgi?id=778050Advisory
- http://www.openwall.com/lists/oss-security/2017/02/03/5Advisory
- http://www.openwall.com/lists/oss-security/2017/02/05/5Advisory
- http://www.securityfocus.com/bid/96016Advisory
- https://access.redhat.com/errata/RHSA-2017:2258
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LGPQ5MQR6SN4DYTEFACHP2PP5RR26KYK/