CVE-2002-1563
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD...
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
Exploit likelihood
What each source reports
NVD Score used
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
- Record
CVE-2002-1563- CVSS 2.0
- 1.2 Low
AV:L/AC:H/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
- Record
CVE-2002-1563- Updated
- 2026-11-02
EUVDEUVD-2002-1545 No score
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
- Record
EUVD-2002-1545- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6234-fx93-pwcr No score
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD...
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
- Record
GHSA-6234-fx93-pwcr- Updated
- 2026-11-02
OSV No score
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
- Record
CVE-2002-1563- Updated
- 2026-11-02
OSVDEBIAN-CVE-2002-1563 No score
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
- Record
DEBIAN-CVE-2002-1563- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2002-1563 is a low vulnerability (CVSS 1.2) in Stunnel, published April 26, 2003. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 27th percentile. Fixed in stunnel 2:3.24-1.