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Vulnerability of tmux: NULL pointer dereference via format_cb_pane_tabs

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via format_cb_pane_tabs() of tmux, in order to trigger a denial of service.
Vulnerable software: Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this announce: 1/4.
Creation date: 26/11/2018.
Références of this computer vulnerability: CVE-2018-19387-REJECT, FEDORA-2018-b74b9ac8d1, FEDORA-2018-e5e93f4c7b, openSUSE-SU-2020:1834-1, VIGILANCE-VUL-27877.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via format_cb_pane_tabs() of tmux, in order to trigger a denial of service.
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This computer threat note impacts software or systems such as Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this weakness alert is low.

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

An attacker with a expert ability can exploit this computer weakness note.

Solutions for this threat 

Fedora: new tmux packages.
New packages are available:
  Fedora 28: tmux 2.8-2.fc28
  Fedora 29: tmux 2.8-2.fc29

openSUSE, SUSE LE: new tmux packages.
New packages are available:
  openSUSE Leap 15.1: tmux 3.1c-lp151.3.3.1
  openSUSE Leap 15.2: tmux 3.1c-lp152.2.3.1
  SUSE LE 12 RTM-SP5: tmux 3.1c-18.1
  SUSE LE 15 SP1: tmux 3.1c-bp151.4.3.1
  SUSE LE 15 SP2: tmux 3.1c-bp152.2.3.1
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

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