Information Exposure Affecting torvalds/linux package, versions [,4.13.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004541
  • published26 Jan 2022
  • disclosed17 Oct 2017
  • creditUnknown

Introduced: 17 Oct 2017

CVE-2017-15537  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.13.5 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. 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.

CVSS Base Scores

version 3.1