Security Features Affecting kernel package, versions <0:4.4.8-20.46.amzn1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.04% (1st percentile)

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  • Snyk IDSNYK-AMZN201803-KERNEL-1696328
  • published27 Sept 2021
  • disclosed27 Apr 2016

Introduced: 27 Apr 2016

CVE-2016-3672  (opens in a new tab)
CWE-254  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel to version 0:4.4.8-20.46.amzn1 or higher.
This issue was patched in ALAS-2016-694.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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