Description
The dav_xml_get_cdata function in main/util.c in the mod_dav module in the Apache HTTP Server before 2.4.8 does not properly remove whitespace characters from CDATA sections, which allows remote attackers to cause a denial of service (daemon crash) via a crafted DAV WRITE request.
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 | 2.4.9-1 | — |
| Debian 13 | apache2 | 2.4.9-1 | — |
| Debian 12 | apache2 | 2.4.9-1 | — |
| Debian 6.0 | apache2 | 2.2.16-6+squeeze13 | DLA-66-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | httpd +3 | 2.2.15-30.el6_5 | RHSA-2014:0370 |
| RHEL 6 | mod_ssl | 1:2.2.15-30.el6_5 | RHSA-2014:0370 |
| RHEL 5 | httpd +2 | 2.2.3-85.el5_10 | RHSA-2014:0369 |
| RHEL 5 | mod_ssl | 1:2.2.3-85.el5_10 | RHSA-2014:0369 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Web Server 2 | httpd +3 | 2.2.22-27.ep6.el5 | RHSA-2014:0783 |
| Red Hat JBoss Web Server 2 | mod_ssl | 1:2.2.22-27.ep6.el5 | RHSA-2014:0783 |
| Red Hat JBoss EAP 6 | httpd +2 | 2.2.22-27.ep6.el5 | RHSA-2014:0826 |
| Red Hat JBoss EAP 6 | mod_ssl | 1:2.2.22-27.ep6.el5 | RHSA-2014:0826 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | apache2 | 2.4.23-4.1 | openSUSE-SU-2024:10268-1 |
Advisories 6
- RHSA-2014:0369 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2014:0370 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2014:0783 Red Hat Security Advisory: Red Hat JBoss Web Server 2.0.1 httpd security and bug fix update Red Hat Security Advisories (RHSA) · May 15, 2026
- RHSA-2014:0826 Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 6.2 httpd security update Red Hat Security Advisories (RHSA) · May 15, 2026
- DLA-66-1 apache2 - security update 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
References
- https://blogs.oracle.com/sunsecurity/entry/multiple_input_validation_vulnerabilities_in1
- https://puppet.com/security/cve/cve-2013-6438
- 59315 third-party-advisory
- 58230 third-party-advisory
- https://support.apple.com/HT204659
- http://advisories.mageia.org/MGASA-2014-0135.html
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10698
- http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/CHANGES
- GLSA-201408-12 vendor-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21676092
- http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/dav/main/util.c?r1=1528718&r2=1556428&diff_format=h
- 60536 third-party-advisory
- 66303 vdb-entry
- HPSBUX03102 vendor-advisory
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- HPSBUX03150 vendor-advisory
- APPLE-SA-2014-10-16-1 vendor-advisory
- 59345 third-party-advisory
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- APPLE-SA-2015-04-08-2 vendor-advisory
- https://support.apple.com/kb/HT6535
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/dav/main/util.c
- https://httpd.apache.org/security/vulnerabilities_24.html
- http://www-01.ibm.com/support/docview.wss?uid=swg21676091
- USN-2152-1 vendor-advisory
- http://www.apache.org/dist/httpd/CHANGES_2.4.9
- http://www-01.ibm.com/support/docview.wss?uid=swg21669554
- [httpd-cvs] 20190815 svn commit: r1048743 [4/4] - 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 [4/4] - 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 [4/4] - 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 [4/4] - 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: r1073139 [9/13] - in /websites/staging/httpd/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: r1073140 [4/4] - 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: r1888194 [9/13] - /httpd/site/trunk/content/security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [9/13] - 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] 20210330 svn commit: r1073146 [3/3] - 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] 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