An integer overflow in TigerVNC might allow remote attackers to execute arbitrary code.
|Package||net-misc/tigervnc on all architectures|
|Affected versions||< 1.4.2|
|Unaffected versions||>= 1.4.2|
TigerVNC is a high-performance VNC server/client.
TigerVNC is impacted by the same vulnerability as found in CVE-2014-6051. An integer overflow, leading to a heap-based buffer overflow, was found in the way screen sizes were handled.
A remote attacker, utilizing a malicious VNC server, could execute arbitrary code with the privileges of the user running the client, or cause a Denial of Service condition.
There is no known workaround at this time.
All TigerVNC users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/tigervnc-1.4.2"
December 13, 2016
December 13, 2016: 2