vulnerability

Oracle Linux: CVE-2017-15537: ELSA-2018-4071: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:H/Au:N/C:C/I:N/A:N)
Published
2017-10-17
Added
2018-04-19
Modified
2025-01-23

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.
The x86/fpu (Floating Point Unit) subsystem in the Linux kernel, 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. This allows 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.

Solution

oracle-linux-upgrade-kernel-uek
Title
NEW

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