{"id":"CVE-2013-1864","aliases":["EUVD-2013-1867","GHSA-4hmc-wjwv-5gj5"],"status":"published","title":"The Portable Tool Library (aka PTLib) before 2.10.10, as used in Ekiga before 4.0.1, does not...","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.\"","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0285,"percentile":0.86804,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2014-05-23T14:00:00Z","modified":"2026-06-16T23:52:16Z","products":[{"vendor":"ekiga","product":"ekiga"},{"vendor":"opalvoip","product":"portable_tool_library"},{"vendor":"suse","product":"suse_linux_enterprise_desktop"},{"vendor":"suse","product":"suse_linux_enterprise_software_development_kit"}],"references":[{"url":"http://secunia.com/advisories/52659","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://www.suse.com/support/update/announcement/2014/suse-su-20140237-1.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/82885","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.ekiga.org/news/2013-02-21/ekiga-4.0.1-stable-available","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2013-March/099553.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://osvdb.org/91439","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://seclists.org/oss-sec/2013/q1/674","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://sourceforge.net/p/opalvoip/code/28856","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch"]},{"url":"http://www.securityfocus.com/bid/58520","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-1864"},{"url":"https://github.com/advisories/GHSA-4hmc-wjwv-5gj5"}],"sources":{"cve":[{"id":"CVE-2013-1864","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.\"","status":"published","published":"2014-05-23T14:00:00Z","modified":"2024-08-06T15:20:35.18Z","updated_at":"2026-11-02T14:34:58.882751Z"}],"euvd":[{"id":"EUVD-2013-1867","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.\"","status":"published","published":"2014-05-23T14:00:00Z","modified":"2024-08-06T15:20:35Z","updated_at":"2026-11-03T01:56:40.540333Z"}],"ghsa":[{"id":"GHSA-4hmc-wjwv-5gj5","title":"The Portable Tool Library (aka PTLib) before 2.10.10, as used in Ekiga before 4.0.1, does not...","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.\"","status":"published","published":"2022-05-17T01:36:25Z","modified":"2023-02-03T05:04:40Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:53:36.332016Z"}],"nvd":[{"id":"CVE-2013-1864","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.\"","status":"published","published":"2014-05-23T14:55:09.63Z","modified":"2026-06-16T23:52:16.527Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:02:50.049023Z"}]}}