📄 Description (English)
PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is an integer overflow in media stream buffer size calculation when processing SDP with asymmetric ptime configuration. The overflow may result in an undersized buffer allocation, which can lead to unexpected application termination or memory corruption This vulnerability is fixed in 2.17.
🤖 AI Executive Summary
CVE-2026-41416 is a high-severity integer overflow vulnerability in PJSIP 2.16 and earlier affecting media stream buffer size calculation during SDP processing with asymmetric ptime configurations. The vulnerability can result in undersized buffer allocation leading to application crashes or memory corruption. This poses significant risk to VoIP and unified communications infrastructure widely deployed across Saudi organizations.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 1, 2026 23:33
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability directly impacts Saudi telecommunications infrastructure, particularly STC and other telecom operators utilizing PJSIP for VoIP services. Banking sector organizations using PJSIP-based communication systems face service disruption and potential data integrity risks. Government agencies and healthcare institutions relying on unified communications platforms are at risk of denial of service. Energy sector (ARAMCO) communication systems may be affected if PJSIP is deployed in their infrastructure. The vulnerability enables remote attackers to crash services or potentially execute arbitrary code through crafted SDP messages.
🏢 Affected Saudi Sectors
Telecommunications
Banking and Financial Services
Government and Public Administration
Healthcare
Energy and Utilities
Education
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
1. IMMEDIATE ACTIONS:
- Identify all systems running PJSIP versions 2.16 and earlier using network scanning and asset inventory tools
- Isolate or restrict network access to affected PJSIP instances if immediate patching is not possible
- Monitor for abnormal SDP traffic patterns and application crashes
2. PATCHING GUIDANCE:
- Upgrade PJSIP to version 2.17 or later immediately
- Test patches in non-production environments first to ensure compatibility with existing VoIP configurations
- Coordinate with telecom and unified communications teams for scheduled maintenance windows
3. COMPENSATING CONTROLS:
- Implement SDP message validation and filtering at network perimeter
- Deploy intrusion detection signatures to detect malformed SDP with asymmetric ptime values
- Restrict SDP message sources to trusted endpoints only
- Enable application-level logging and monitoring for unexpected terminations
4. DETECTION RULES:
- Monitor for SDP messages with mismatched ptime values in offer/answer
- Alert on PJSIP application crashes correlated with SDP processing
- Track buffer allocation failures in media stream initialization
- Monitor for repeated connection attempts with crafted SDP payloads
🔧 خطوات المعالجة (العربية)
1. الإجراءات الفورية:
- تحديد جميع الأنظمة التي تعمل بإصدارات PJSIP 2.16 وأقدم باستخدام أدوات المسح والجرد
- عزل أو تقييد الوصول الشبكي للأنظمة المتأثرة إذا لم يكن الترقيع الفوري ممكناً
- مراقبة أنماط حركة SDP غير الطبيعية وأعطال التطبيقات
2. إرشادات الترقيع:
- ترقية PJSIP إلى الإصدار 2.17 أو أحدث فوراً
- اختبار التصحيحات في بيئات غير الإنتاج أولاً للتأكد من التوافق
- التنسيق مع فرق الاتصالات والاتصالات الموحدة لنوافذ الصيانة المجدولة
3. الضوابط البديلة:
- تنفيذ التحقق من صحة رسائل SDP والتصفية على محيط الشبكة
- نشر توقيعات كشف التطفل للكشف عن SDP المشوهة بقيم ptime غير متماثلة
- تقييد مصادر رسائل SDP للنقاط الطرفية الموثوقة فقط
- تفعيل السجلات ومراقبة مستوى التطبيق للإنهاءات غير المتوقعة
4. قواعد الكشف:
- مراقبة رسائل SDP بقيم ptime غير متطابقة في العرض/الإجابة
- تنبيهات على أعطال تطبيق PJSIP المرتبطة بمعالجة SDP
- تتبع فشل تخصيص المخزن المؤقت في تهيئة تدفق الوسائط
- مراقبة محاولات الاتصال المتكررة برسائل SDP المصنعة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.14.2.1 - Secure development policy
ECC 2024 A.12.2.1 - Monitoring and logging of access
🔵 SAMA CSF
ID.RA-1 - Asset management and vulnerability identification
PR.IP-12 - Software development and change management
DE.CM-1 - Detection and analysis of anomalies
🟡 ISO 27001:2022
A.12.2.1 - Monitoring and logging
A.12.6.1 - Management of technical vulnerabilities
A.14.2.1 - Secure development policy and procedures
🟣 PCI DSS v4.0.1
Requirement 6.2 - Security patches and updates
Requirement 11.2 - Vulnerability scanning
📦 Affected Products / CPE 1 entries
teluu:pjsip