CVE-2002-1563
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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.33% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 26.8% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2003-04-26 04:00Z23 YR AGO
- Last updated
- 2024-08-08 03:26Z2 YR AGO
- Reserved
- 2003-04-23
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 5bf3b5e20af5d31c35c099acfd7b8766e5827b26f1f553bd803af3cd3e0daf36
05 Affected products
06 References
- www.linuxsecurity.comESA-20030806-020http://www.linuxsecurity.com/advisories/engarde_advisory-3535.html
- distro.conectiva.com.brCLA-2003:736http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000736
- marc.info20030112 SIGCHLD problem in Stunnelhttp://marc.info/?l=bugtraq&m=104247606910598
- www.redhat.comRHSA-2003:223http://www.redhat.com/support/errata/RHSA-2003-223.html
- marc.infohttp://marc.info/?l=stunnel-users&m=103600188215117&w=2
- www.securityfocus.com6592http://www.securityfocus.com/bid/6592
- marc.info2003-0030http://marc.info/?l=bugtraq&m=106029168514511&w=2
- www.redhat.comRHSA-2003:221http://www.redhat.com/support/errata/RHSA-2003-221.html
07 Fixed in
Debian 12
- stunnel4 Fixed in 4.04-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- stunnel4 Fixed in 4.04-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- stunnel Fixed in 2:3.24-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.