{"cve":"CVE-2013-1864","nvd":{"published":"2014-05-23T14:55:09.630","modified":"2026-06-16T23:52:16.527","status":"Modified","description":"The Portable Tool Library (aka PTLib) before 2.10.10, as used in Ekiga before 4.0.1, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted PXML document containing a large number of nested entity references, aka a \"billion laughs attack.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2013-March/099553.html","http://osvdb.org/91439","http://seclists.org/oss-sec/2013/q1/674","http://secunia.com/advisories/52659","http://sourceforge.net/p/opalvoip/code/28856"],"products":["ekiga:ekiga","opalvoip:portable_tool_library","suse:suse_linux_enterprise_desktop","suse:suse_linux_enterprise_software_development_kit"],"source":"nvd","synced_at":"2026-10-19T20:33:06.232976534+00:00"},"epss":{"cve":"CVE-2013-1864","score":0.0285,"percentile":0.86714,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}