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…
Does this matter?
Lower severity and a low EPSS score (3.61%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
- EPSS
- 3.61% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- xmlsoft/libxml2 · canonical/ubuntu linux · debian/debian linux · suse/linux enterprise server
- Source
- secalert@redhat.com
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/52662Vendor Advisory
- http://secunia.com/advisories/54172
- http://secunia.com/advisories/55568Vendor 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=4629ee02ac649c27f9c0cf98ba017c6b5526070fExploit, Patch
- 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/52662Vendor Advisory
- http://secunia.com/advisories/54172
- http://secunia.com/advisories/55568Vendor 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=4629ee02ac649c27f9c0cf98ba017c6b5526070fExploit, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.