tmux 2.9-3.1b input.c input_csi_dispatch_sgr_colon stack-based overflow

Summaryinfo

A vulnerability classified as critical was found in tmux 2.9-3.1b. This affects the function input_csi_dispatch_sgr_colon of the file input.c. The manipulation results in stack-based overflow. This vulnerability is known as CVE-2020-27347. Attacking locally is a requirement. No exploit is available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability classified as critical has been found in tmux 2.9-3.1b. Affected is the function input_csi_dispatch_sgr_colon of the file input.c. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 11/06/2020. The advisory is available at openwall.com. This vulnerability is traded as CVE-2020-27347. The exploitability is told to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

Name

• tmux

Version

• 2.9-3.1b

License

• open-source

Website

• Product: https://github.com/tmux/tmux/

CPE 2.3info

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CPE 2.2info

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