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Vigil@nce - tmux: buffer overflow via input_csi_dispatch_sgr_colon

December 2020 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2

SYNTHESIS OF THE VULNERABILITY

Impacted products: OpenBSD, openSUSE Leap, Solaris, SUSE Linux
Enterprise Desktop, SLES, Ubuntu.

Severity: 2/4.

Consequences: administrator access/rights, privileged
access/rights, user access/rights, denial of service on service,
denial of service on client.

Provenance: user shell.

Confidence: confirmed by the editor (5/5).

Creation date: 29/10/2020.

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.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/tmux-buffer-overflow-via-input-csi-dispatch-sgr-colon-33740


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