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Out-of-bounds Write Affecting glibc-langpack-en package, versions <0:2.26-28.amzn2.0.1

medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 1.41% (87th percentile)
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NVD
9.8 critical
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SUSE
7.8 high
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Red Hat
7.8 high

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  • Snyk ID SNYK-AMZN2-GLIBCLANGPACKEN-1664595
  • published 27 Sep 2021
  • disclosed 18 May 2018
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Introduced: 18 May 2018

CVE-2018-11236 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:2 glibc-langpack-en to version 0:2.26-28.amzn2.0.1 or higher.
This issue was patched in ALAS2-2018-1048.

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.

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.