CVE-2020-27347

In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output.

References

Affected packages

Git / github.com/tmux/tmux

Affected ranges

Type

GIT

Repo

https://github.com/tmux/tmux

Events

Introduced

4cb13d95bac1c7a14f216a0fd1644d8b5e389258

Last Affected

25cae5d86f01d0deb050243842ed5d967b3dc411

Fixed

a868bacb46e3c900530bed47a1c6f85b0fbe701c

Database specific

Show details

{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:tmux_project:tmux:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "2.9"
                },
                {
                    "last_affected":  "3.1b"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "a868bacb46e3c900530bed47a1c6f85b0fbe701c"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27347.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "170732737008620410805361164261211254853",
            "length":  1720
        },
        "id":  "CVE-2020-27347-4e35a636",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c",
        "target":  {
            "file":  "input.c",
            "function":  "input_csi_dispatch_sgr_colon"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
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            ],
            "threshold":  0.9
        },
        "id":  "CVE-2020-27347-c15704b2",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c",
        "target":  {
            "file":  "input.c"
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]

vanir_signatures_modified

"2026-10-20T13:59:09Z"