The Portable Tool Library (aka PTLib) before 2.10.10, as used in Ekiga before 4.0.1, does…
Priority LOW 25CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
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."
Why it matters now
EPSS 0.0285 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:opalvoip:portable_tool_library:2.10.1:*:*:*:*:*:*:* | 2.10.1 | Vulnerable | Opalvoip |
| cpe:2.3:a:opalvoip:portable_tool_library:2.10.2:*:*:*:*:*:*:* | 2.10.2 | Vulnerable | Opalvoip |
| cpe:2.3:a:opalvoip:portable_tool_library:2.10.7:*:*:*:*:*:*:* | 2.10.7 | Vulnerable | Opalvoip |
| cpe:2.3:a:opalvoip:portable_tool_library:2.10.9:*:*:*:*:*:*:* | 2.10.9 | Vulnerable | Opalvoip |
| cpe:2.3:a:ekiga:ekiga:*:*:*:*:*:*:*:* | up to 4.0.0 | Vulnerable | Ekiga |
| cpe:2.3:a:suse:suse_linux_enterprise_software_development_kit:11.0:sp3:*:*:*:*:*:* | 11.0 sp3 | Vulnerable | SUSE |
| cpe:2.3:o:suse:suse_linux_enterprise_desktop:11.0:sp3:*:*:*:*:*:* | 11.0 sp3 | Vulnerable | SUSE |
- cpe:2.3:a:opalvoip:portable_tool_library:2.10.1:*:*:*:*:*:*:* Versions 2.10.1 Vulnerable ·Opalvoip
- cpe:2.3:a:opalvoip:portable_tool_library:2.10.2:*:*:*:*:*:*:* Versions 2.10.2 Vulnerable ·Opalvoip
- cpe:2.3:a:opalvoip:portable_tool_library:2.10.7:*:*:*:*:*:*:* Versions 2.10.7 Vulnerable ·Opalvoip
- cpe:2.3:a:opalvoip:portable_tool_library:2.10.9:*:*:*:*:*:*:* Versions 2.10.9 Vulnerable ·Opalvoip
- cpe:2.3:a:ekiga:ekiga:*:*:*:*:*:*:*:* Versions up to 4.0.0 Vulnerable ·Ekiga
- cpe:2.3:a:suse:suse_linux_enterprise_software_development_kit:11.0:sp3:*:*:*:*:*:* Versions 11.0 sp3 Vulnerable ·SUSE
- cpe:2.3:o:suse:suse_linux_enterprise_desktop:11.0:sp3:*:*:*:*:*:* Versions 11.0 sp3 Vulnerable ·SUSE
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2013-1864
- 2026-10-03 Alias added: GHSA-4hmc-wjwv-5gj5
References
Sources
- CVE-2013-1864 · CVE Program
- CVE-2013-1864 · NVD
- FIRST EPSS
- GHSA-4hmc-wjwv-5gj5 · GitHub Advisory Database · CC BY 4.0
- CVE-2013-1864 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences