CVE-2025-68724

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An integer overflow issue exists in the Linux kernel's asymmetric key handling. Specifically, a potential overflow can occur when adding binary blob lengths and the size of an asymmetric key id structure. This could lead to a buffer overflow when processing data from potentially malicious X.509 certificate fields, such as ASN.1 INTEGER serial numbers or issuer names. The check add overflow() function is used to prevent this overflow by returning an error if an overflow is detected.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.