Stack-based Buffer Overflow Affecting kernel-rt-trace package, versions <0:3.10.0-693.21.1.rt56.639.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-RHEL7-KERNELRTTRACE-4788198
  • published26 Jul 2021
  • disclosed10 Oct 2017

Introduced: 10 Oct 2017

CVE-2017-12188  (opens in a new tab)
CWE-121  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:7 kernel-rt-trace to version 0:3.10.0-693.21.1.rt56.639.el7 or higher.
This issue was patched in RHSA-2018:0412.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace package and not the kernel-rt-trace package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

arch/x86/kvm/mmu.c in the Linux kernel through 4.13.5, when nested virtualisation is used, does not properly traverse guest pagetable entries to resolve a guest virtual address, which allows L1 guest OS users to execute arbitrary code on the host OS or cause a denial of service (incorrect index during page walking, and host OS crash), aka an "MMU potential stack buffer overrun."

CVSS Scores

version 3.1