CVE-2024-53241

A flaw was found in Xen hypercall page handling within virtualized guest environments. The Xen hypercall page contains code generated by the hypervisor that lacks awareness of guest operating system CPU speculation mitigations, such as return instruction transforms, and Control-flow Integrity (CFI) protections. A local user or guest-level attacker can exploit this lack of hardening to bypass speculative execution defenses, potentially leading to information disclosure through side-channel attacks.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.