The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of LibVNCServer: denial of service via Divide By Zero

Synthesis of the vulnerability 

An attacker can trigger a fatal error via Divide By Zero of LibVNCServer, in order to trigger a denial of service.
Vulnerable products: Debian, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this weakness: 2/4.
Creation date: 16/11/2020.
Références of this bulletin: CVE-2020-25708, DLA-2451-1, openSUSE-SU-2020:2025-1, openSUSE-SU-2020:2097-1, SUSE-SU-2020:14549-1, SUSE-SU-2020:3515-1, SUSE-SU-2020:3550-1, USN-4636-1, VIGILANCE-VUL-33900.

Description of the vulnerability 

An attacker can trigger a fatal error via Divide By Zero of LibVNCServer, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This cybersecurity vulnerability impacts software or systems such as Debian, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this weakness alert.

Solutions for this threat 

Debian 9: new libvncserver packages.
New packages are available:
  Debian 9: libvncserver 0.9.11+dfsg-1.3~deb9u6

openSUSE Leap 15.1: new LibVNCServer packages.
New packages are available:
  openSUSE Leap 15.1: LibVNCServer 0.9.10-lp151.7.12.1

openSUSE Leap 15.2: new LibVNCServer packages.
New packages are available:
  openSUSE Leap 15.2: libvncclient0 0.9.10-lp152.9.8.1, libvncserver0 0.9.10-lp152.9.8.1

SUSE LE 11 SP3-SP4: new LibVNCServer packages.
New packages are available:
  SUSE LE 11 SP4: LibVNCServer 0.9.1-160.22.1
  SUSE LE 11 SP3: LibVNCServer 0.9.1-160.22.1

SUSE LE 12 SP2-5: new LibVNCServer packages.
New packages are available:
  SUSE LE 12 SP2: LibVNCServer 0.9.9-17.34.1
  SUSE LE 12 SP3: LibVNCServer 0.9.9-17.34.1
  SUSE LE 12 SP4: LibVNCServer 0.9.9-17.34.1
  SUSE LE 12 SP5: LibVNCServer 0.9.9-17.34.1

SUSE LE 15 SP1, SP2: new LibVNCServer packages.
New packages are available:
  SUSE LE 15 SP2: libvncclient0 0.9.10-4.25.1, libvncserver0 0.9.10-4.25.1
  SUSE LE 15 SP1: libvncclient0 0.9.10-4.25.1

Ubuntu: new vino packages.
New packages are available:
  Ubuntu 20.10: vino 3.22.0-6ubuntu2.1
  Ubuntu 20.04 LTS: vino 3.22.0-5ubuntu2.2
  Ubuntu 18.04 LTS: vino 3.22.0-3ubuntu1.2
  Ubuntu 16.04 LTS: vino 3.8.1-0ubuntu9.4
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a computer vulnerability watch. The technology watch team tracks security threats targeting the computer system.