The ap_proxy_ftp_handler function in modules/proxy/proxy_ftp.c in the mod_proxy_ftp…
Priority LOW 24CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
The ap_proxy_ftp_handler function in modules/proxy/proxy_ftp.c in the mod_proxy_ftp module in the Apache HTTP Server 2.0.63 and 2.2.13 allows remote FTP servers to cause a denial of service (NULL pointer dereference and child process crash) via a malformed reply to an EPSV command.
Why it matters now
EPSS 0.08566 95th percentileScored 2026-11-07
Fix Fixed Red Hat: 5 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | 2.0.35 to before 2.0.64; 2.2.0 to before 2.2.14 | Vulnerable | Apache |
| cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:* | 10 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:12:*:*:*:*:*:*:* | 12 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Debian |
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions 2.0.35 to before 2.0.64; 2.2.0 to before 2.2.14 Vulnerable ·Apache
- cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:12:*:*:*:*:*:*:* Versions 12 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Debian
Remediation
Red Hat 5 advisories
- RHSA-2010:0602 Released 2010-08-04 · Red Hat rating ModerateRed Hat Certificate System 7.3 security update
- Red Hat Certificate System 7.3 for 4AS ant-1.6.5-1jpp_1rh, avalon-logkit-1.2-2jpp_4rh, axis-1.2.1-1jpp_3rh +39
- Red Hat Certificate System 7.3 for 4ES ant-1.6.5-1jpp_1rh, avalon-logkit-1.2-2jpp_4rh, axis-1.2.1-1jpp_3rh +39
- RHSA-2010:0011 Released 2010-01-06 · Red Hat rating Moderatehttpd and httpd22 security update
- Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Server httpd-2.2.10-11.ep5.el5, httpd-2.2.10-11.ep5.el5.i386, httpd-devel-2.2.10-11.ep5.el5 +5
- Red Hat JBoss Web Server 1.0 for RHEL 4 AS httpd22-2.2.10-25.1.ep5.el4, httpd22-2.2.10-25.1.ep5.el4.i386, httpd22-apr-2.2.10-25.1.ep5.el4 +11
- Red Hat JBoss Web Server 1.0 for RHEL 4 ES httpd22-2.2.10-25.1.ep5.el4, httpd22-2.2.10-25.1.ep5.el4.i386, httpd22-apr-2.2.10-25.1.ep5.el4 +11
- RHSA-2009:1580 Released 2009-11-11 · Red Hat rating Moderatehttpd security update
- Red Hat Enterprise Linux AS version 4 httpd-2.0.52-41.ent.6, httpd-2.0.52-41.ent.6.i386, httpd-2.0.52-41.ent.6.ia64 +17
- Red Hat Enterprise Linux Desktop version 4 httpd-2.0.52-41.ent.6, httpd-2.0.52-41.ent.6.i386, httpd-devel-2.0.52-41.ent.6 +7
- Red Hat Enterprise Linux ES version 4 httpd-2.0.52-41.ent.6, httpd-2.0.52-41.ent.6.i386, httpd-2.0.52-41.ent.6.ia64 +12
- Red Hat Enterprise Linux WS version 4 httpd-2.0.52-41.ent.6, httpd-2.0.52-41.ent.6.i386, httpd-2.0.52-41.ent.6.ia64 +12
Show 2 more Red Hat advisories
- RHSA-2009:1579 Released 2009-11-11 · Red Hat rating Moderatehttpd security update
- Red Hat Desktop version 3 httpd-2.0.46-77.ent, httpd-2.0.46-77.ent.i386, httpd-devel-2.0.46-77.ent +3
- Red Hat Enterprise Linux (v. 5 server) httpd-2.2.3-31.el5_4.2, httpd-2.2.3-31.el5_4.2.i386, httpd-2.2.3-31.el5_4.2.ia64 +13
- Red Hat Enterprise Linux AS version 3 httpd-2.0.46-77.ent, httpd-2.0.46-77.ent.i386, httpd-2.0.46-77.ent.ia64 +9
- Red Hat Enterprise Linux Desktop (v. 5 client) httpd-2.2.3-31.el5_4.2, httpd-2.2.3-31.el5_4.2.i386, mod_ssl-1:2.2.3-31.el5_4.2 +1
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) httpd-2.2.3-31.el5_4.2, httpd-devel-2.2.3-31.el5_4.2, httpd-devel-2.2.3-31.el5_4.2.i386 +2
- Red Hat Enterprise Linux ES version 3 httpd-2.0.46-77.ent, httpd-2.0.46-77.ent.i386, httpd-2.0.46-77.ent.ia64 +6
- Red Hat Enterprise Linux WS version 3 httpd-2.0.46-77.ent, httpd-2.0.46-77.ent.i386, httpd-2.0.46-77.ent.ia64 +6
- RHSA-2009:1461 Released 2009-09-23 · Red Hat rating ImportantRed Hat Application Stack v2.4 security and enhancement update
- Red Hat Application Stack v2 for Enterprise Linux (v.5) httpd-2.2.13-2.el5s2, httpd-2.2.13-2.el5s2.i386, httpd-devel-2.2.13-2.el5s2 +47
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Certificate System 7.3 for 4AS | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 for 4ES | Fixed | RHSA-2010:0602 |
| Red Hat Desktop version 3 | Fixed | RHSA-2009:1579 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2009:1579 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2009:1579 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2009:1580 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2009:1579 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2009:1579 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2009:1580 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2009:1579 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2009:1580 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2009:1579 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2009:1580 |
| Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Server | Fixed | RHSA-2010:0011 |
| Red Hat JBoss Web Server 1.0 for RHEL 4 AS | Fixed | RHSA-2010:0011 |
| Red Hat JBoss Web Server 1.0 for RHEL 4 ES | Fixed | RHSA-2010:0011 |
Timeline
- 2026-10-02 Threatist record created from CVE-2009-3094
- 2026-10-03 Alias added: GHSA-vg4c-4xc2-v43h
- 2026-10-16 EPSS moved to the 95th–99th percentile
References
Advisory 13
Other 24
- http://www.intevydis.com/blog/?p=59
- http://wiki.rpath.com/Advisories:rPSA-2009-0155
- http://intevydis.com/vd-list.shtml
- [httpd-cvs] 20190815 svn commit: r1048742 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20190815 svn commit: r1048743 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20190815 svn commit: r1048743 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20190815 svn commit: r1048742 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20200401 svn commit: r1058586 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20200401 svn commit: r1058586 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20200401 svn commit: r1058587 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20200401 svn commit: r1058587 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/
- [httpd-cvs] 20210330 svn commit: r1888194 [6/13] - /httpd/site/trunk/content/security/json/
- [httpd-cvs] 20210330 svn commit: r1073140 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210330 svn commit: r1073139 [6/13] - in /websites/staging/httpd/trunk/content: ./ security/json/
- [httpd-cvs] 20210330 svn commit: r1073140 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210330 svn commit: r1073143 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/
- [httpd-cvs] 20210330 svn commit: r1073149 [7/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/
- [httpd-cvs] 20210330 svn commit: r1073146 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities-httpd.xml security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/
- [httpd-cvs] 20210603 svn commit: r1075360 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210603 svn commit: r1075360 [1/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210606 svn commit: r1075467 [1/2] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210606 svn commit: r1075470 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
Sources
- CVE-2009-3094 · CVE Program
- CVE-2009-3094 · NVD
- FIRST EPSS
- GHSA-vg4c-4xc2-v43h · GitHub Advisory Database · CC BY 4.0
- CVE-2009-3094 · Red Hat security data · CC BY 4.0
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