Vulnerabilities > Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2009-06-08 | CVE-2009-1955 | XML Entity Expansion vulnerability in multiple products The expat XML parser in the apr_xml_* interface in xml/apr_xml.c in Apache APR-util before 1.3.7, as used in the mod_dav and mod_dav_svn modules in the Apache HTTP Server, allows remote attackers to cause a denial of service (memory consumption) via a crafted XML document containing a large number of nested entity references, as demonstrated by a PROPFIND request, a similar issue to CVE-2003-1564. | 7.5 |
| 2008-08-27 | CVE-2008-3281 | XML Entity Expansion vulnerability in multiple products libxml2 2.6.32 and earlier does not properly detect recursion during entity expansion in an attribute value, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document. | 6.5 |
| 2003-12-31 | CVE-2003-1564 | XML Entity Expansion vulnerability in Xmlsoft Libxml2 libxml2, possibly before 2.5.0, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, aka the "billion laughs attack." | 6.5 |