Debian 11 — stunnel4 — multiple vulnerabilities (7 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 22 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2002-1563 CVE-2003-0740 CVE-2008-2420 CVE-2011-2940 CVE-2013-1762 CVE-2015-3644 CVE-2021-20230 Upstream summary: stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions […]