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Vulnerability of tmux: buffer overflow via input_csi_dispatch_sgr_colon

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via input_csi_dispatch_sgr_colon() of tmux, in order to trigger a denial of service, and possibly to run code.
Vulnerable systems: OpenBSD, openSUSE Leap, Solaris, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 2/4.
Creation date: 29/10/2020.
Références of this weakness: CVE-2020-27347, openSUSE-SU-2020:1834-1, USN-4618-1, VIGILANCE-VUL-33740.

Description of the vulnerability 

An attacker can trigger a buffer overflow via input_csi_dispatch_sgr_colon() of tmux, in order to trigger a denial of service, and possibly to run code.
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This security bulletin impacts software or systems such as OpenBSD, openSUSE Leap, Solaris, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

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

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

Solutions for this threat 

OpenBSD: patch for tmux.
A patch is available:
  https://ftp.openbsd.org/pub/OpenBSD/patches/6.7/common/027_tmux.patch.sig
  https://ftp.openbsd.org/pub/OpenBSD/patches/6.8/common/003_tmux.patch.sig

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

Oracle Solaris: patch for third party software of October 2020 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

Ubuntu: new tmux packages.
New packages are available:
  Ubuntu 20.10: tmux 3.1b-1ubuntu0.1
  Ubuntu 20.04 LTS: tmux 3.0a-2ubuntu0.2
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