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."
Metrics
CVSS 2.0 4.3/10
AV:N/AC:M/Au:N/C:N/I:N/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
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/28856Exploit, Patch
- http://www.ekiga.org/news/2013-02-21/ekiga-4.0.1-stable-availablePatch, Vendor Advisory
- http://www.securityfocus.com/bid/58520
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82885
- https://www.suse.com/support/update/announcement/2014/suse-su-20140237-1.html
- 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/28856Exploit, Patch
- http://www.ekiga.org/news/2013-02-21/ekiga-4.0.1-stable-availablePatch, Vendor Advisory
- http://www.securityfocus.com/bid/58520
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82885
- https://www.suse.com/support/update/announcement/2014/suse-su-20140237-1.html
Timeline
- Published
- May 23, 2014
- Last modified
- Jun 16, 2026
- NVD status
- Modified