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Out-of-bounds Write Affecting libcom_err package, versions <0:1.43.5-2.44.amzn1

0.0
medium

Snyk CVSS

    Attack Complexity High
    Privileges Required High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.08% (35th percentile)
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NVD
6.7 medium
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Red Hat
6.4 medium
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SUSE
6.7 medium

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  • Snyk ID SNYK-AMZN201803-LIBCOMERR-1724627
  • published 27 Sep 2021
  • disclosed 24 Sep 2019
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Introduced: 24 Sep 2019

CVE-2019-5094 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 libcom_err to version 0:1.43.5-2.44.amzn1 or higher.
This issue was patched in ALAS-2021-1458.

NVD Description

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

An exploitable code execution vulnerability exists in the quota file functionality of E2fsprogs 1.45.3. A specially crafted ext4 partition can cause an out-of-bounds write on the heap, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.

References