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CVE-2013-1864

4.3 · MEDIUM

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 s…

Published May 23, 2014opalvoipCWE-119EPSS 2.85%

Overview

CVE-2013-1864 is a medium-severity vulnerability affecting opalvoip portable_tool_library. It was published on May 23, 2014 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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."

Remediation

Check the references section for vendor advisories and patches from opalvoip. Update portable_tool_library to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
ekigaekiga0Affected

References

Reflists.fedoraproject.org/pipermail/package-announce/2013-March/099553.htmlRefosvdb.org/91439Refseclists.org/oss-sec/2013/q1/674Refsecunia.com/advisories/52659Refsourceforge.net/p/opalvoip/code/28856Refwww.ekiga.org/news/2013-02-21/ekiga-4.0.1-stable-availableRefwww.securityfocus.com/bid/58520Refexchange.xforce.ibmcloud.com/vulnerabilities/82885Refwww.suse.com/support/update/announcement/2014/suse-su-20140237-1.htmlReflists.fedoraproject.org/pipermail/package-announce/2013-March/099553.html

How CyberStrike helps

Frequently asked questions

What is CVE-2013-1864?

CVE-2013-1864 is a medium-severity vulnerability affecting opalvoip portable_tool_library. It was published on May 23, 2014 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2013-1864?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-1864?

Check the references section for vendor advisories and patches from opalvoip. Update portable_tool_library to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-1864?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-1864 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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