Description
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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2017-6989 | 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. |
Ubuntu USN |
USN-3469-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-3469-2 | Linux kernel (Xenial HWE) vulnerabilities |
Ubuntu USN |
USN-3487-1 | Linux kernel vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T19:57:26.496Z
Reserved: 2017-10-17T00:00:00.000Z
Link: CVE-2017-15537
No data.
Status : Modified
Published: 2017-10-17T18:29:00.197
Modified: 2026-05-13T00:24:29.033
Link: CVE-2017-15537
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Ubuntu USN