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Improper Input Validation Affecting glibc-langpack-unm package, versions <0:2.26-32.amzn2.0.1

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.55% (79th percentile)

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  • Snyk IDSNYK-AMZN2-GLIBCLANGPACKUNM-1668039
  • published27 Sept 2021
  • disclosed4 Dec 2018
Report a new vulnerability Found a mistake?

Introduced: 4 Dec 2018

CVE-2018-19591  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 glibc-langpack-unm to version 0:2.26-32.amzn2.0.1 or higher.
This issue was patched in ALAS2-2019-1140.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-unm package and not the glibc-langpack-unm package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.

References