Full Report
The bulletin identifies five critical remote code execution (RCE) vulnerabilities affecting the core components of Android’s system. The post Android patches several vulnerabilities in first security update of 2025 appeared first on CyberScoop.
Analysis Summary
# Vulnerability: Android January 2025 Security Update Fixes Critical RCEs and Vendor Flaws
## CVE Details
- CVE ID: CVE-2024-43096, CVE-2024-43770, CVE-2024-43771, CVE-2024-49747, CVE-2024-49748 (Critical Android System RCEs), CVE-2024-20154 (MediaTek), CVE-2024-21464 (Qualcomm)
- CVSS Score: Not explicitly rated, but five core Android vulnerabilities are categorized as **Critical Remote Code Execution (RCE)**.
- CWE: Not specified in detail, but RCE implies weaknesses like Buffer Overflow or Use-After-Free.
## Affected Systems
- Products: Android core system components (All Android devices utilizing affected components), Samsung devices (patched in December), MediaTek chipsets, Qualcomm chipsets.
- Versions: Devices that have **not** received the security patch level dated January 5, 2025, or later.
- Configurations: Vulnerabilities affect the core system components. MediaTek/Qualcomm flaws may depend on specific hardware/driver implementations.
## Vulnerability Description
The January 2025 Android security bulletin addresses multiple critical vulnerabilities. Five flaws reside within Android's core "system" components, which could allow attackers to execute arbitrary code remotely without requiring user interaction or elevated privileges.
Specific vendor vulnerabilities include:
1. **CVE-2024-20154 (MediaTek):** Lack of bounds checking when writing data results in writing data outside safe limits. This could potentially allow remote control by tricking the device into connecting to a fake cell tower.
2. **CVE-2024-21464 (Qualcomm):** An issue where data is copied without checking if it properly fits into the allocated memory space (likely a buffer overflow/over-read). This leads to memory corruption, particularly when no users are actively connected to the device's data network capabilities.
## Exploitation
- Status: Not explicitly stated whether the RCEs were exploited in the wild, but the severity suggests high risk. Researchers at Oppo’s Amber Security Lab discovered the primary Android flaws.
- Complexity: The RCEs affecting the core system components suggest **Medium to High** complexity for remote exploitation, though the MediaTek flaw specifically mentions potential allowance for remote control via a fake cell tower, which implies a lower barrier for that specific vector.
- Attack Vector: Primarily **Network** (for RCEs) and potentially **Adjacent Network** for the MediaTek modem component flaw.
## Impact
- Confidentiality: High (Remote Code Execution allows full system access)
- Integrity: High (Remote Code Execution allows modification of system files/data)
- Availability: High (System compromise can lead to denial of service or complete device control)
## Remediation
### Patches
- Android devices protected by receiving the security patch level dated **January 5, 2025, or later**.
- Samsung devices were patched in a **December update**.
### Workarounds
- No specific workarounds are detailed, but users are urged to apply patches promptly. For the MediaTek vulnerability, restricting modem connections or using network filtering might offer temporary relief if patching is delayed.
## Detection
- Detection information is not explicitly detailed in the summary, but standard indicators would include anomalous system process behavior or communication patterns associated with exploitation of core OS components.
- Detection methods focus on verifying the presence of the January 5, 2025 security patch level on affected Android devices.
## References
- Vendor Advisories: Samsung Security Updates (link provided in source)
- Full Bulletin: [source.android.com/docs/security/bulletin/2025-01-01] (defanged)