Predictable from Observable State Affecting kernel-rt-trace package, versions <0:3.10.0-862.rt56.804.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.04% (1st percentile)

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  • Snyk IDSNYK-RHEL7-KERNELRTTRACE-4849793
  • published26 Jul 2021
  • disclosed6 Apr 2016

Introduced: 6 Apr 2016

CVE-2016-3672  (opens in a new tab)
CWE-341  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:7 kernel-rt-trace to version 0:3.10.0-862.rt56.804.el7 or higher.
This issue was patched in RHSA-2018:0676.

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.

The arch_pick_mmap_layout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDR_NO_RANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid or setgid program, by disabling stack-consumption resource limits.

References

CVSS Scores

version 3.1