CVE: CVE-2025-5702
The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller. This can lead to overwriting of its contents, potentially altering control flow or leaking input strings to other parts of the program.
Details
| Severity | Base Score | CVE |
|---|---|---|
| MEDIUM | 5.6 | CVE-2025-5702 |
Exploitation
To exploit this vulnerability, an attacker would need to send specially crafted input strings over a network to a vulnerable application using the affected version of the GNU C Library. The high attack complexity indicates that the attacker must have specific knowledge of the application and its environment to successfully manipulate the control flow.
Affected Products
- GNU C Library version 2.39 and later: This version contains the vulnerable strcmp implementation that can lead to unintended behavior when handling string comparisons.
Mitigation
To mitigate this vulnerability, users should upgrade to a patched version of the GNU C Library that addresses this issue. Additionally, implementing input validation and monitoring for unusual behavior in applications can help reduce the risk of exploitation.
References