CVE-2017-15537 Information disclosure in n/a

What is CVE-2017-15537?

CVE-2017-15537 is a medium-severity vulnerability in Linux kernel, published on 17 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-200

Which versions are affected by CVE-2017-15537?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-15537?

Upgrade to a fixed version.

Is CVE-2017-15537 being exploited?

There is no known exploitation of CVE-2017-15537 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2017-15537, GHSA-hgc2-77r9-87cw, UBUNTU-CVE-2017-15537.