CVE-2017-17520: Debian Tin

High severity, CVSS 8.8. EPSS: 1.9% chance of exploitation in the next 30 days.

tools/url_handler.pl in TIN 2.4.1 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL. NOTE: a third party has reported that this is intentional behavior, because the documentation states "url_handler.pl was designed to work together with tin which only issues shell escaped absolute URLs.

Affected products

• Debian Tin: version 2.4.1 only

Published 2017-12-14. Last modified 2026-06-17.