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CVE-2017-15537 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=814fb7bb7db5433757d76f4c4502c96fc53b0b5e	CVE	Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/814fb7bb7db5433757d76f4c4502c96fc53b0b5e	CVE	Issue TrackingPatchThird Party Advisory
https://source.android.com/security/bulletin/pixel/2018-01-01	CVE
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5	CVE	Release NotesVendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=814fb7bb7db5433757d76f4c4502c96fc53b0b5e	[email protected]	Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/814fb7bb7db5433757d76f4c4502c96fc53b0b5e	[email protected]	Issue TrackingPatchThird Party Advisory
https://source.android.com/security/bulletin/pixel/2018-01-01	[email protected]
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5	[email protected]	Release NotesVendor Advisory

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-200	Exposure of Sensitive Information to an Unauthorized Actor	[email protected]

Affected Products

Product	Versions
linux linux kernel	<= 4.13.4
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jan 13, 2018	CVE Modified	[email protected]
Nov 1, 2017	Initial Analysis	[email protected]