The dav_xml_get_cdata function in main/util.c in the mod_dav module in the Apache HTTP…
Priority MEDIUM 45Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Partial Red Hat: 15 fixed, 4 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.27499 98th percentileScored 2026-11-07
Fix Partial Red Hat: 6 advisoriesRed Hat: 15 fixed, 4 without a fix
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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | 2.2.0 to before 2.2.27; 2.4.1 to before 2.4.9 | Vulnerable | Apache |
| cpe:2.3:a:oracle:http_server:10.1.3.5.0:*:*:*:*:*:*:* | 10.1.3.5.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:http_server:11.1.1.7.0:*:*:*:*:*:*:* | 11.1.1.7.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:http_server:12.1.2.0:*:*:*:*:*:*:* | 12.1.2.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:http_server:12.1.3.0:*:*:*:*:*:*:* | 12.1.3.0 | Vulnerable | Oracle |
| cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* | 10.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* | 12.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* | 13.10 | Vulnerable | Canonical |
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions 2.2.0 to before 2.2.27; 2.4.1 to before 2.4.9 Vulnerable ·Apache
- cpe:2.3:a:oracle:http_server:10.1.3.5.0:*:*:*:*:*:*:* Versions 10.1.3.5.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:http_server:11.1.1.7.0:*:*:*:*:*:*:* Versions 11.1.1.7.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:http_server:12.1.2.0:*:*:*:*:*:*:* Versions 12.1.2.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:http_server:12.1.3.0:*:*:*:*:*:*:* Versions 12.1.3.0 Vulnerable ·Oracle
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* Versions 12.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* Versions 13.10 Vulnerable ·Canonical
Remediation
Red Hat 6 advisories
- RHSA-2014:0825 Released 2014-07-01 · Red Hat rating ModerateRed Hat JBoss Enterprise Application Platform 6.2 httpd security update
- Red Hat JBoss Enterprise Application Platform 6.2
- RHSA-2014:0826 Released 2014-07-01 · Red Hat rating ModerateRed Hat JBoss Enterprise Application Platform 6.2 httpd security update
- Red Hat JBoss Enterprise Application Platform 6.2 for RHEL 5 Server httpd-2.2.22-27.ep6.el5, httpd-2.2.22-27.ep6.el5.i386, httpd-devel-2.2.22-27.ep6.el5 +5
- Red Hat JBoss Enterprise Application Platform 6.2 for RHEL 6 Server httpd-2.2.22-27.ep6.el6, httpd-2.2.22-27.ep6.el6.i386, httpd-devel-2.2.22-27.ep6.el6 +5
- RHSA-2014:0783 Released 2014-06-23 · Red Hat rating ModerateRed Hat JBoss Web Server 2.0.1 httpd security and bug fix update
- Red Hat JBoss Enterprise Web Server 2 for RHEL 5 Server httpd-2.2.22-27.ep6.el5, httpd-2.2.22-27.ep6.el5.i386, httpd-devel-2.2.22-27.ep6.el5 +7
- Red Hat JBoss Enterprise Web Server 2 for RHEL 6 Server httpd-2.2.22-27.ep6.el6, httpd-2.2.22-27.ep6.el6.i386, httpd-devel-2.2.22-27.ep6.el6 +7
Show 3 more Red Hat advisories
- RHSA-2014:0784 Released 2014-06-23 · Red Hat rating ModerateRed Hat JBoss Web Server 2.0.1 httpd security and bug fix update
- Red Hat JBoss Web Server 2.0
- RHSA-2014:0370 Released 2014-04-03 · Red Hat rating Moderatehttpd security update
- Red Hat Enterprise Linux Desktop (v. 6) httpd-2.2.15-30.el6_5, httpd-tools-2.2.15-30.el6_5
- Red Hat Enterprise Linux Desktop Optional (v. 6) httpd-2.2.15-30.el6_5, httpd-devel-2.2.15-30.el6_5, httpd-manual-2.2.15-30.el6_5 +1
- Red Hat Enterprise Linux HPC Node (v. 6) httpd-2.2.15-30.el6_5, httpd-tools-2.2.15-30.el6_5
- Red Hat Enterprise Linux HPC Node Optional (v. 6) httpd-2.2.15-30.el6_5, httpd-devel-2.2.15-30.el6_5, httpd-manual-2.2.15-30.el6_5 +1
- Red Hat Enterprise Linux Server (v. 6) httpd-2.2.15-30.el6_5, httpd-devel-2.2.15-30.el6_5, httpd-devel-2.2.15-30.el6_5.ppc +3
- Red Hat Enterprise Linux Workstation (v. 6) httpd-2.2.15-30.el6_5, httpd-devel-2.2.15-30.el6_5, httpd-manual-2.2.15-30.el6_5 +2
- RHSA-2014:0369 Released 2014-04-03 · Red Hat rating Moderatehttpd security update
- Red Hat Enterprise Linux (v. 5 server) httpd-2.2.3-85.el5_10, httpd-2.2.3-85.el5_10.i386, httpd-2.2.3-85.el5_10.ia64 +13
- Red Hat Enterprise Linux Desktop (v. 5 client) httpd-2.2.3-85.el5_10, httpd-2.2.3-85.el5_10.i386, mod_ssl-1:2.2.3-85.el5_10 +1
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) httpd-2.2.3-85.el5_10, httpd-devel-2.2.3-85.el5_10, httpd-devel-2.2.3-85.el5_10.i386 +2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Directory Server 8 | Affected | No fix yet |
| Red Hat JBoss Enterprise Application Platform 5 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Enterprise Web Server 1 | Affected | No fix planned: Will not fix |
| Red Hat Software Collections | Affected | No fix yet |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2014:0369 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2014:0369 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2014:0370 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2014:0370 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2014:0369 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2014:0370 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2014:0370 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:0370 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:0370 |
| Red Hat JBoss Enterprise Application Platform 6.2 | Fixed | RHSA-2014:0825 |
| Red Hat JBoss Enterprise Application Platform 6.2 for RHEL 5 Server | Fixed | RHSA-2014:0826 |
| Red Hat JBoss Enterprise Application Platform 6.2 for RHEL 6 Server | Fixed | RHSA-2014:0826 |
| Red Hat JBoss Enterprise Web Server 2 for RHEL 5 Server | Fixed | RHSA-2014:0783 |
| Red Hat JBoss Enterprise Web Server 2 for RHEL 6 Server | Fixed | RHSA-2014:0783 |
| Red Hat JBoss Web Server 2.0 | Fixed | RHSA-2014:0784 |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2013-6438
- 2026-10-03 Alias added: GHSA-2xpp-q4gq-7cc3
References
Advisory 23
- https://blogs.oracle.com/sunsecurity/entry/multiple_input_validation_vulnerabilities_in1
- https://puppet.com/security/cve/cve-2013-6438
- 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
- http://www-01.ibm.com/support/docview.wss?uid=swg21676092
- HPSBUX03102
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- HPSBUX03150
- APPLE-SA-2014-10-16-1
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- APPLE-SA-2015-04-08-2
- https://support.apple.com/kb/HT6535
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities
- 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
- http://www.apache.org/dist/httpd/CHANGES_2.4.9
- http://www-01.ibm.com/support/docview.wss?uid=swg21669554
Other 18
- [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/vulnerabilities_24.html
- [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/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 [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/vulnerabilities_24.html
- [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/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: r1073139 [9/13] - in /websites/staging/httpd/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: 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.html
- [httpd-cvs] 20210330 svn commit: r1888194 [9/13] - /httpd/site/trunk/content/security/json/
- [httpd-cvs] 20210330 svn commit: r1073149 [9/13] - 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] 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
- [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-2013-6438 · CVE Program
- CVE-2013-6438 · NVD
- FIRST EPSS
- GHSA-2xpp-q4gq-7cc3 · GitHub Advisory Database · CC BY 4.0
- CVE-2013-6438 · Red Hat security data · CC BY 4.0
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