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Out-of-bounds Write Affecting libicu package, versions <0:50.2-4.0.amzn1

medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.42% (74th percentile)
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NVD
8.8 high
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SUSE
8.8 high
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Red Hat
8.8 high

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  • Snyk ID SNYK-AMZN201803-LIBICU-1721550
  • published 27 Sep 2021
  • disclosed 12 Mar 2020
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Introduced: 12 Mar 2020

CVE-2020-10531 Open this link in a new tab
CWE-787 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 libicu to version 0:50.2-4.0.amzn1 or higher.
This issue was patched in ALAS-2020-1361.

NVD Description

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

An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leading to a heap-based buffer overflow, exists in the UnicodeString::doAppend() function in common/unistr.cpp.

References