Out-of-Bounds Affecting kernel package, versions <0:4.4.39-34.54.amzn1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNEL-1704176
  • published27 Sept 2021
  • disclosed28 Dec 2016

Introduced: 28 Dec 2016

CVE-2016-9793  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel to version 0:4.4.39-34.54.amzn1 or higher.
This issue was patched in ALAS-2017-782.

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 sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option.

CVSS Scores

version 3.1