CVE-2013-0339
libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because libxml2 already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed and each affected application would need its own CVE.
Key facts
- CVSS score
- 6.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-264
- EPSS score
- 3.6% (90th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-0351)
- Published
- January 21, 2014
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-0351 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- debian / debian linux
- debian / debian linux
- suse / linux enterprise server
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
and 85 more…
References
- http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
- http://openwall.com/lists/oss-security/2013/02/21/24
- http://openwall.com/lists/oss-security/2013/02/22/3
- http://seclists.org/oss-sec/2013/q4/182
- http://seclists.org/oss-sec/2013/q4/184
- http://seclists.org/oss-sec/2013/q4/188
- http://secunia.com/advisories/52662(Vendor Advisory)
- http://secunia.com/advisories/54172
- http://secunia.com/advisories/55568(Vendor Advisory)
- http://www.debian.org/security/2013/dsa-2652
- http://www.openwall.com/lists/oss-security/2013/04/12/6
- http://www.ubuntu.com/usn/USN-1904-1
- http://www.ubuntu.com/usn/USN-1904-2
- https://bugzilla.redhat.com/show_bug.cgi?id=915149
- https://git.gnome.org/browse/libxml2/commit/?id=4629ee02ac649c27f9c0cf98ba017c6b5526070f(Exploit, Patch)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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