UBUNTU-CVE-2020-27347

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Source
https://ubuntu.com/security/CVE-2020-27347
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27347.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-27347
Upstream
Downstream
Related
Published
2020-11-04T00:00:00Z
Modified
2025-09-08T16:46:26Z
Severity
  • 8.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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

References

Affected packages

Ubuntu:20.04:LTS / tmux

Package

Name
tmux
Purl
pkg:deb/ubuntu/tmux@3.0a-2ubuntu0.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0a-2ubuntu0.2

Affected versions

2.*

2.9a-3build1
2.9a-3build2

3.*

3.0-1
3.0a-1
3.0a-2
3.0a-2ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tmux",
            "binary_version": "3.0a-2ubuntu0.2"
        }
    ],
    "availability": "No subscription required"
}