CVE-2002-1850 EXPLOIT
7.5
HIGH · CVSS 3.1 · EPSS 17.4% (pctl 97)
Patch early
A public exploit exists.
Description
mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 17.41% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-667 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2002-12-31 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| apache | http server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Apache 2.0.39/40 - Oversized STDERR Buffer Denial of Service | 2002-09-24 |
References
- http://cvs.apache.org/viewcvs.cgi/httpd-2.0/modules/generators/mod_cgi.c?r1=1.148.2.7&r2=1.148.2.8
- http://issues.apache.org/bugzilla/show_bug.cgi?id=10515
- http://issues.apache.org/bugzilla/show_bug.cgi?id=22030
- http://marc.info/?l=apache-httpd-dev&m=103291952019514&w=2
- http://seclists.org/bugtraq/2002/Sep/0253.html
- http://securitytracker.com/id?1007823
- http://www.iss.net/security_center/static/10200.php
- http://www.securityfocus.com/bid/5787
- http://www.securityfocus.com/bid/8725
- http://cvs.apache.org/viewcvs.cgi/httpd-2.0/modules/generators/mod_cgi.c?r1=1.148.2.7&r2=1.148.2.8
- http://issues.apache.org/bugzilla/show_bug.cgi?id=10515
- http://issues.apache.org/bugzilla/show_bug.cgi?id=22030
- http://marc.info/?l=apache-httpd-dev&m=103291952019514&w=2
- http://seclists.org/bugtraq/2002/Sep/0253.html
- http://securitytracker.com/id?1007823
- http://www.iss.net/security_center/static/10200.php
- http://www.securityfocus.com/bid/5787
- http://www.securityfocus.com/bid/8725
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