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Integer Overflow or Wraparound Affecting kernel-tools package, versions <0:4.9.43-17.38.amzn1

Severity

 Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNELTOOLS-1707869
  • published27 Sept 2021
  • disclosed21 Jul 2017
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Introduced: 21 Jul 2017

CVE-2017-7542  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel-tools to version 0:4.9.43-17.38.amzn1 or higher.
This issue was patched in ALAS-2017-870.

NVD Description

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

The ip6_find_1stfragopt function in net/ipv6/output_core.c in the Linux kernel through 4.12.3 allows local users to cause a denial of service (integer overflow and infinite loop) by leveraging the ability to open a raw socket.

References