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Debian LTS Advisory ([SECURITY] [DLA 1652-1] libvncserver security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
A vulnerability was found by Kaspersky Lab in libvncserver, a C library to implement VNC server/client functionalities. In addition, some of the vulnerabilities addressed in DLA 1617-1 were found to have incomplete fixes, and have been addressed in this update. CVE-2018-15126 An attacker can cause denial of service or remote code execution via a heap use-after-free issue in the tightvnc-filetransfer extension. CVE-2018-20748 CVE-2018-20749 CVE-2018-20750 Some of the out of bound heap write fixes for CVE-2018-20019 and CVE-2018-15127 were incomplete. These CVEs address those issues.
Affected Software
Affected Software
libvncserver on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For Debian 8 'Jessie', these problems have been fixed in version 0.9.9+dfsg2-6.1+deb8u5. We recommend that you upgrade your libvncserver packages.