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.
Published: 2017-10-17
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Advisories
Source ID Title
EUVD 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 Ubuntu USN USN-3469-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3469-2 Linux kernel (Xenial HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3487-1 Linux kernel vulnerabilities
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Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

Reserved: 2017-10-17T00:00:00.000Z

Link: CVE-2017-15537

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2026-05-13T00:24:29.033

Link: CVE-2017-15537

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2017-15537 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses