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

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.55% (78th percentile)
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NVD
7.5 high
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Red Hat
5.3 medium

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  • Snyk ID SNYK-AMZN2-GLIBCLANGPACKEN-1668009
  • published 27 Sep 2021
  • disclosed 4 Dec 2018
Report a new vulnerability Found a mistake?

Introduced: 4 Dec 2018

CVE-2018-19591 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 glibc-langpack-en 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-en package and not the glibc-langpack-en 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