The x86/fpu (Floating Point Unit) subsystem in the Linux kernel before 4.13.5, when a processor supports the xsave feature but not the xsaves feature, does not correctly handle attempts to set reserved bits in the xstate header via the ptrace() or rt_sigreturn() system call, allowing local users to read the FPU registers of other processes on the system, related to arch/x86/kernel/fpu/regset.c and arch/x86/kernel/fpu/signal.c.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-10-17T18:00:00

Updated: 2024-08-05T19:57:26.496Z

Reserved: 2017-10-17T00:00:00

Link: CVE-2017-15537

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2017-10-17T18:29:00.197

Modified: 2018-01-13T02:29:13.083

Link: CVE-2017-15537

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-10-17T00:00:00Z

Links: CVE-2017-15537 - Bugzilla