Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | apache2 | 2.2.13-2 | — |
| Debian 13 | apache2 | 2.2.13-2 | — |
| Debian 12 | apache2 | 2.2.13-2 | — |
| Debian 5.0 | apache2 | 2.2.9-10+lenny6 | DSA-1934-1 |
| Debian 4.0 | apache2 | 2.2.3-4+etch11 | DSA-1934-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | httpd +2 | 2.2.3-31.el5_4.2 | RHSA-2009:1579 |
| RHEL 5 | mod_ssl | 1:2.2.3-31.el5_4.2 | RHSA-2009:1579 |
| RHEL 4 | httpd +3 | 2.0.52-41.ent.6 | RHSA-2009:1580 |
| RHEL 4 | mod_ssl | 1:2.0.52-41.ent.6 | RHSA-2009:1580 |
| RHEL 3 | httpd +1 | 2.0.46-77.ent | RHSA-2009:1579 |
| RHEL 3 | mod_ssl | 1:2.0.46-77.ent | RHSA-2009:1579 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Application Stack 2 | httpd +2 | 2.2.13-2.el5s2 | RHSA-2009:1461 |
| Red Hat Rhel Application Stack 2 | mod_ssl | 1:2.2.13-2.el5s2 | RHSA-2009:1461 |
| Red Hat Rhel Application Stack 2 | mysql +6 | 5.0.84-2.el5s2 | RHSA-2009:1461 |
| Red Hat Rhel Application Stack 2 | perl-DBD-MySQL | 4.012-1.el5s2 | RHSA-2009:1461 |
| Red Hat Rhel Application Stack 2 | perl-DBI | 1.609-1.el5s2 | RHSA-2009:1461 |
| Red Hat Rhel Application Stack 2 | php +18 | 5.2.10-1.el5s2 | RHSA-2009:1461 |
| Red Hat Rhel Application Stack 2 | php-pear | 1:1.8.1-2.el5s2 | RHSA-2009:1461 |
| Red Hat Rhel Application Stack 2 | postgresql +11 | 8.2.14-1.el5s2 | RHSA-2009:1461 |
| Red Hat Rhel Application Stack 2 | postgresql-jdbc | 8.2.510-1jpp.el5s2 | RHSA-2009:1461 |
| Red Hat JBoss Web Server 1 | httpd +2 | 2.2.10-11.ep5.el5 | RHSA-2010:0011 |
| Red Hat JBoss Web Server 1 | httpd22 +5 | 2.2.10-25.1.ep5.el4 | RHSA-2010:0011 |
| Red Hat JBoss Web Server 1 | mod_ssl | 1:2.2.10-11.ep5.el5 | RHSA-2010:0011 |
| Red Hat JBoss Web Server 1 | mod_ssl22 | 1:2.2.10-25.1.ep5.el4 | RHSA-2010:0011 |
| Red Hat Certificate System 7 | ant | 1.6.5-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | avalon-logkit | 1.2-2jpp_4rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | axis | 1.2.1-1jpp_3rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | classpathx-jaf | 1.0-2jpp_6rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | classpathx-mail | 1.1.1-2jpp_8rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | geronimo-specs +10 | 1.0-0.M4.1jpp_10rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | jakarta-commons-modeler | 2.0-3jpp_2rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | log4j | 1.2.12-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | mx4j | 1:3.0.1-1jpp_4rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | pcsc-lite +2 | 1.3.3-3.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-ca | 7.3.0-20.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-java-tools | 7.3.0-10.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-kra | 7.3.0-14.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-manage | 7.3.0-19.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-native-tools | 7.3.0-6.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-tks +1 | 7.3.0-13.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | tomcat5 +5 | 5.5.23-0jpp_4rh.16 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | xerces-j2 | 2.7.1-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | xml-commons +1 | 1.3.02-2jpp_1rh | RHSA-2010:0602 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | apache2 | 2.4.23-4.1 | openSUSE-SU-2024:10268-1 |
Advisories 7
- RHSA-2010:0602 Red Hat Security Advisory: Red Hat Certificate System 7.3 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2010:0011 Red Hat Security Advisory: httpd and httpd22 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2009:1579 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2009:1580 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-1934-1 apache2 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10268-1 apache2-2.4.23-4.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2009:1461 Red Hat Security Advisory: Red Hat Application Stack v2.4 security and enhancement update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- SUSE-SA:2009:050 vendor-advisory
- oval:org.mitre.oval:def:10981 vdb-entry signature
- ADV-2010-0609 vdb-entry
- HPSBUX02531 vendor-advisory
- SSRT090244 vendor-advisory
- 37152 third-party-advisory
- DSA-1934 vendor-advisory
- PK96858 vendor-advisory
- 20091124 rPSA-2009-0155-1 httpd mod_ssl mailing-list
- http://www.intevydis.com/blog/?p=59
- SSRT100782 vendor-advisory
- oval:org.mitre.oval:def:8087 vdb-entry signature
- FEDORA-2009-12604 vendor-advisory
- PM09161 vendor-advisory
- http://wiki.rpath.com/Advisories:rPSA-2009-0155
- https://bugzilla.redhat.com/show_bug.cgi?id=521619
- FEDORA-2009-12606 vendor-advisory
- http://intevydis.com/vd-list.shtml
- 36549 third-party-advisory
- [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/vulnerabilit mailing-list
- [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/vulnerabilit mailing-list
- [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/vulnerabilit mailing-list
- [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/vulnerabilit mailing-list
- [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/vulnerabilit mailing-list
- [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/vulnerabilit mailing-list
- [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/vulnerabilit mailing-list
- [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/vulnerabilit mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1888194 [6/13] - /httpd/site/trunk/content/security/json/ mailing-list
- [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.ht mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [6/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [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.ht mailing-list
- [httpd-cvs] 20210330 svn commit: r1073143 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [7/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [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 mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [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/vulnerabiliti mailing-list
- [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/vulnerabiliti mailing-list
- [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/vulnerabiliti mailing-list
- [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/vulnerabiliti mailing-list