security flaw
Published Apr 26, 2003
1.2
LOWCVSS 2.0
EPSS 0.34%
Description
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux AS (Advanced Server) version 2.1
n/a
Fixed · RHSA-2003:223
Red Hat Enterprise Linux ES version 2.1
n/a
Fixed · RHSA-2003:223
Red Hat Enterprise Linux WS version 2.1
n/a
Fixed · RHSA-2003:223
Red Hat Linux 7.1
n/a
Fixed · RHSA-2003:296
Red Hat Linux 7.1
n/a
Fixed · RHSA-2003:221
Red Hat Linux 7.2
n/a
Fixed · RHSA-2003:221
Red Hat Linux 7.2
n/a
Fixed · RHSA-2003:296
Red Hat Linux 7.3
n/a
Fixed · RHSA-2003:221
Red Hat Linux 7.3
n/a
Fixed · RHSA-2003:296
Red Hat Linux 8.0
n/a
Fixed · RHSA-2003:296
Red Hat Linux 8.0
n/a
Fixed · RHSA-2003:221
Red Hat Linux Advanced Workstation 2.1
n/a
Fixed · RHSA-2003:223
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | n/a | Fixed | RHSA-2003:223 |
| Red Hat Enterprise Linux ES version 2.1 | n/a | Fixed | RHSA-2003:223 |
| Red Hat Enterprise Linux WS version 2.1 | n/a | Fixed | RHSA-2003:223 |
| Red Hat Linux 7.1 | n/a | Fixed | RHSA-2003:296 |
| Red Hat Linux 7.1 | n/a | Fixed | RHSA-2003:221 |
| Red Hat Linux 7.2 | n/a | Fixed | RHSA-2003:221 |
| Red Hat Linux 7.2 | n/a | Fixed | RHSA-2003:296 |
| Red Hat Linux 7.3 | n/a | Fixed | RHSA-2003:221 |
| Red Hat Linux 7.3 | n/a | Fixed | RHSA-2003:296 |
| Red Hat Linux 8.0 | n/a | Fixed | RHSA-2003:296 |
| Red Hat Linux 8.0 | n/a | Fixed | RHSA-2003:221 |
| Red Hat Linux Advanced Workstation 2.1 | n/a | Fixed | RHSA-2003:223 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:H/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.34% (0.00337) | 24.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.34% (0.00337) | 25.33th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00083) | 21.91th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00059) | 26.93th | v3 (v2023.03.01) |
| May 25, 2024 | 0.06% (0.00059) | 24.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00059) | 22.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
No CWE recorded.
References (12)
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000736 vendor-advisoryx_refsource_CONECTIVA
- http://marc.info/?l=bugtraq&m=104247606910598 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=106029168514511&w=2 vendor-advisoryx_refsource_TRUSTIX
- http://marc.info/?l=stunnel-users&m=103600188215117&w=2 x_refsource_MISC
- http://www.linuxsecurity.com/advisories/engarde_advisory-3535.html vendor-advisoryx_refsource_ENGARDE
- http://www.redhat.com/support/errata/RHSA-2003-221.html vendor-advisoryx_refsource_REDHATPatchVendor Advisory
- http://www.redhat.com/support/errata/RHSA-2003-223.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/6592 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2002-1563 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1616922 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2002-1563
- https://www.cve.org/CVERecord?id=CVE-2002-1563
| Link | Providers | Tags |
|---|---|---|
| http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000736 | vendor-advisoryx_refsource_CONECTIVA | |
| http://marc.info/?l=bugtraq&m=104247606910598 | mailing-listx_refsource_BUGTRAQ | |
| http://marc.info/?l=bugtraq&m=106029168514511&w=2 | vendor-advisoryx_refsource_TRUSTIX | |
| http://marc.info/?l=stunnel-users&m=103600188215117&w=2 | x_refsource_MISC | |
| http://www.linuxsecurity.com/advisories/engarde_advisory-3535.html | vendor-advisoryx_refsource_ENGARDE | |
| http://www.redhat.com/support/errata/RHSA-2003-221.html | vendor-advisoryx_refsource_REDHATPatchVendor Advisory | |
| http://www.redhat.com/support/errata/RHSA-2003-223.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.securityfocus.com/bid/6592 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2002-1563 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1616922 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2002-1563 | ||
| https://www.cve.org/CVERecord?id=CVE-2002-1563 |
Change history (0)
No recorded changes yet.