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Loop with Unreachable Exit Condition ('Infinite Loop') Affecting glibc-langpack-en package, versions <0:2.26-47.amzn2

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.05% (20th percentile)
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NVD
5.5 medium
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SUSE
3.3 low
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Red Hat
5.5 medium

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  • Snyk ID SNYK-AMZN2-GLIBCLANGPACKEN-1700218
  • published 27 Sep 2021
  • disclosed 26 Feb 2021
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Introduced: 26 Feb 2021

CVE-2020-27618 Open this link in a new tab
CWE-835 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 glibc-langpack-en to version 0:2.26-47.amzn2 or higher.
This issue was patched in ALAS2-2021-1656.

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.

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.