Overview
CVE-2025-48511 is a medium severity vulnerability found within the AMD uprof component. This flaw allows a local attacker to potentially write to arbitrary physical addresses due to improper input validation. Successful exploitation could result in a system crash or a denial-of-service (DoS) condition.
Technical Details
The vulnerability stems from inadequate input validation within the AMD uprof module. Specifically, the software does not properly sanitize or validate user-supplied input when interacting with memory addresses. This lack of validation enables a malicious local attacker to craft input that forces the application to write data to an unintended and potentially critical physical memory location. The attacker requires local access to the system to exploit this vulnerability.
CVSS Analysis
The Common Vulnerability Scoring System (CVSS) score for CVE-2025-48511 is 5.5 (Medium).
- Attack Vector: Local (L)
- Attack Complexity: Low (L)
- Privileges Required: Low (L)
- User Interaction: None (N)
- Scope: Unchanged (U)
- Confidentiality Impact: None (N)
- Integrity Impact: Low (L)
- Availability Impact: High (H)
Possible Impact
Exploitation of CVE-2025-48511 could lead to the following:
- System Crash: Writing to critical memory locations can cause the operating system to crash.
- Denial of Service (DoS): The vulnerability can be leveraged to render the system unusable, leading to a denial-of-service condition.
- Potential for Further Exploitation: While the initial impact is DoS, successful arbitrary memory writes might be chained with other vulnerabilities for more significant impact (although this is not the primary concern for this CVE).
Mitigation and Patch Steps
AMD has released a security bulletin addressing this vulnerability. Users are strongly advised to take the following steps:
- Apply the Patch: Update your AMD drivers and software packages to the versions specified in the AMD security bulletin AMD-SB-9019.
- Monitor Systems: Closely monitor systems for any signs of unusual behavior or crashes.
- Restrict Local Access: Limit local access to systems where possible, adhering to principle of least privilege.
