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 (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program.

CVSS v3 5.6 MEDIUM

5.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://sourceware.org/bugzilla/show_bug.cgi?id=33056	Issue Tracking

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gnu:glibc::::::::
	cpe:2.3:a:gnu:glibc::::::::
	cpe:2.3:a:gnu:glibc::::::::

History

01 Oct 2025, 15:37

Type	Values Removed	Values Added
Summary		(es) La implementación de strcmp optimizada para el procesador Power10 en GNU C Library versión 2.39 y posteriores escribe en los registros vectoriales v20 a v31 sin guardar el contenido del llamador (esos registros están definidos como registros no volátiles por la ABI powerpc64le), lo que da como resultado la sobrescritura de su contenido y la posible alteración del flujo de control del llamador o la filtración de las cadenas de entrada a la función a otras partes del programa.
CPE		cpe:2.3:a:gnu:glibc::::::::
First Time		Gnu Gnu glibc
References	~~() https://sourceware.org/bugzilla/show_bug.cgi?id=33056 -~~	() https://sourceware.org/bugzilla/show_bug.cgi?id=33056 - Issue Tracking

05 Jun 2025, 21:15

Type	Values Removed	Values Added
CWE		CWE-665
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.6

05 Jun 2025, 19:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-05 19:15

Updated : 2025-10-01 15:37

NVD link : CVE-2025-5702

Mitre link : CVE-2025-5702

CVE.ORG link : CVE-2025-5702

JSON object : View

Products Affected

gnu

glibc

CWE

CWE-665

Improper Initialization

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