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Vulnerabilities

CVE-2021-25370

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
Samsung Mobile Devices Memory Corruption Vulnerability — Samsung mobile devices using Mali GPU contain an incorrect implementation handling file descriptor in dpu driver. This incorrect implementation
Published: Nov 8, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Samsung Mobile Devices Memory Corruption Vulnerability — Samsung mobile devices using Mali GPU contain an incorrect implementation handling file descriptor in dpu driver. This incorrect implementation results in memory corruption, leading to kernel panic. This vulnerability was chained with CVE-2021-25337 and CVE-2021-25369.

🤖 AI Executive Summary

CVE-2021-25370 is a critical memory corruption vulnerability in Samsung mobile devices' Mali GPU driver affecting file descriptor handling in the DPU (Display Processing Unit) driver. The vulnerability can lead to kernel panic and has been actively exploited in the wild when chained with related CVEs. This poses significant risk to Saudi government, military, and enterprise users relying on Samsung devices for secure communications.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 20, 2026 06:39
🇸🇦 Saudi Arabia Impact Assessment
High impact on Saudi government entities (NCA, Ministry of Interior), military personnel, and enterprise users. Banking sector (SAMA-regulated institutions) using Samsung devices for mobile banking infrastructure faces operational disruption risk. Telecom operators (STC, Mobily, Zain) managing Samsung device fleets experience service degradation. Healthcare sector (MOH) relying on Samsung devices for patient data access faces availability concerns. Energy sector (ARAMCO) personnel using Samsung devices for operational technology access face potential compromise.
🏢 Affected Saudi Sectors
Government Military Banking Telecommunications Healthcare Energy Enterprise
⚖️ Saudi Risk Score (AI)
8.7
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Samsung devices in your organization using Mali GPU (primarily Galaxy S10-S21 series, Note 10-20 series, A-series flagships)
2. Isolate affected devices from critical networks until patching is complete
3. Monitor for kernel panic events and unexpected device reboots
4. Disable GPU-intensive applications temporarily if possible

PATCHING GUIDANCE:
1. Apply Samsung security updates immediately (March 2021 or later security patch level)
2. Check device settings > About phone > Software update for latest patches
3. For enterprise deployments, use Samsung Knox Configure or MDM solutions to enforce updates
4. Prioritize patching for devices with access to sensitive government/financial systems

COMPENSATING CONTROLS (if immediate patching unavailable):
1. Restrict affected devices from accessing critical applications and networks
2. Implement application-level sandboxing and permission restrictions via Knox
3. Disable hardware acceleration in GPU-dependent applications
4. Monitor device logs for suspicious GPU driver activity

DETECTION RULES:
1. Monitor for kernel panic logs containing 'dpu' or 'mali' driver references
2. Alert on unexpected device reboots during GPU-intensive operations
3. Track failed GPU memory allocation attempts in system logs
4. Monitor for exploitation attempts targeting /dev/mali* or /dev/dpu* device files
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Samsung في مؤسستك التي تستخدم Mali GPU (بشكل أساسي سلسلة Galaxy S10-S21 و Note 10-20 و A-series)
2. عزل الأجهزة المتأثرة عن الشبكات الحرجة حتى اكتمال التصحيح
3. مراقبة أحداث توقف النواة وإعادة تشغيل الجهاز غير المتوقعة
4. تعطيل التطبيقات التي تستهلك موارد GPU مؤقتاً إن أمكن

إرشادات التصحيح:
1. تطبيق تحديثات أمان Samsung على الفور (مستوى التصحيح الأمني من مارس 2021 أو أحدث)
2. التحقق من إعدادات الجهاز > حول الهاتف > تحديث البرنامج للحصول على أحدث التصحيحات
3. بالنسبة للنشر على مستوى المؤسسة، استخدم Samsung Knox Configure أو حلول MDM لفرض التحديثات
4. إعطاء الأولوية لتصحيح الأجهزة التي تحتوي على وصول إلى الأنظمة الحكومية والمالية الحساسة

الضوابط البديلة (إذا لم يكن التصحيح الفوري متاحاً):
1. تقييد الأجهزة المتأثرة من الوصول إلى التطبيقات والشبكات الحرجة
2. تنفيذ الحماية على مستوى التطبيق والقيود على الأذونات عبر Knox
3. تعطيل تسريع الأجهزة في التطبيقات التي تعتمد على GPU
4. مراقبة سجلات الجهاز للنشاط المريب في برنامج تشغيل GPU

قواعد الكشف:
1. مراقبة سجلات توقف النواة التي تحتوي على مراجع برنامج تشغيل 'dpu' أو 'mali'
2. تنبيه إعادة تشغيل الجهاز غير المتوقعة أثناء العمليات التي تستهلك موارد GPU
3. تتبع محاولات تخصيص ذاكرة GPU الفاشلة في سجلات النظام
4. مراقبة محاولات الاستغلال التي تستهدف ملفات الجهاز /dev/mali* أو /dev/dpu*
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures A.8.1.1 - User endpoint devices security A.8.2.1 - User access management A.12.2.1 - Change management procedures A.12.6.1 - Management of technical vulnerabilities
🔵 SAMA CSF
ID.RA-1 - Asset management and vulnerability identification PR.IP-12 - System and information integrity DE.CM-8 - Vulnerability scans RS.MI-2 - Incident response and recovery procedures
🟡 ISO 27001:2022
A.12.6.1 - Management of technical vulnerabilities A.14.2.1 - Secure development policy A.12.2.1 - Change management A.16.1.5 - Response to information security incidents
🟣 PCI DSS v4.0
6.2 - Ensure security patches are installed 11.2 - Run automated vulnerability scans 12.2 - Implement configuration standards
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Samsung:Mobile Devices
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS0.24%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-11-29
Published 2022-11-08
Source Feed cisa_kev
Views 3
🇸🇦 Saudi Risk Score
8.7
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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