Use After Free Affecting kernel-headers package, versions <0:4.9.77-31.58.amzn1


Severity

Recommended
0.0
high
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-KERNELHEADERS-1709955
  • published27 Sept 2021
  • disclosed5 Dec 2017

Introduced: 5 Dec 2017

CVE-2017-8824  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel-headers to version 0:4.9.77-31.58.amzn1 or higher.
This issue was patched in ALAS-2018-944.

NVD Description

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

The dccp_disconnect function in net/dccp/proto.c in the Linux kernel through 4.14.3 allows local users to gain privileges or cause a denial of service (use-after-free) via an AF_UNSPEC connect system call during the DCCP_LISTEN state.

CVSS Scores

version 3.1