VNC: libVNC LibVNCServer Tight File Transfer Extension CVE-2018-6307 Use After Free
This signature detects attempts to exploit a known vulnerability against libVNC LibVNCServer. Successful exploitation may result in remote code execution on the target server.
Extended Description
LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.
Affected Products
Libvnc_project libvncserver
References
CVE: CVE-2018-6307
Short Name
VNC:CVE-2018-6307-UAF
Severity
Major
Recommended
True
Recommended Action
Drop
Category
VNC
Keywords
After CVE-2018-15126 CVE-2018-6307 Extension File Free LibVNCServer Tight Transfer Use libVNC
Release Date
02/25/2019
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3592
False Positive
Unknown
Vendors
Libvnc_project
Debian
Canonical
CVSS Score
7.5
6.8