high
7.2
CWE
264
Advisory Published
Updated

CVE-2015-5157

First published: Mon Aug 31 2015(Updated: )

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform mishandles IRET faults in processing NMIs that occurred during userspace execution, which might allow local users to gain privileges by triggering an NMI.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat enterprise Linux desktop=6.0
Red Hat Enterprise Linux HPC Node=6.0
redhat enterprise Linux server=6.0
redhat enterprise Linux server eus=6.7.z
redhat enterprise Linux workstation=6.0
Linux Kernel<=4.1.5
Linux Kernel<3.12.47
Linux Kernel>=3.13<3.14.54
Linux Kernel>=3.15<3.16.35
Linux Kernel>=3.17<3.18.22
Linux Kernel>=3.19<4.1.6

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-5157?

    CVE-2015-5157 is classified as a high severity vulnerability due to its potential to allow local users to gain elevated privileges.

  • How do I fix CVE-2015-5157?

    To fix CVE-2015-5157, users should upgrade to a version of the Linux kernel that is later than 4.1.6 or apply the relevant patches provided by their Linux distribution.

  • Which Linux distributions are affected by CVE-2015-5157?

    CVE-2015-5157 affects various Red Hat Enterprise Linux versions, including Enterprise Linux Desktop, HPC Node, Server, and Workstation, as well as specific versions of the Linux kernel.

  • Can CVE-2015-5157 be exploited remotely?

    No, CVE-2015-5157 requires local access to the system for exploitation, as it relies on triggering non-maskable interrupts (NMIs) during userspace execution.

  • Is there a workaround for CVE-2015-5157?

    Currently, there are no recommended workarounds for CVE-2015-5157 other than upgrading the kernel to a secure version.

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