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Divide By Zero Affecting elfutils-libelf package, versions <0:0.176-2.amzn2

0.0
low

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 0.32% (71st percentile)
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NVD
5.5 medium
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SUSE
3.3 low
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Red Hat
3.3 low

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  • Snyk ID SNYK-AMZN2-ELFUTILSLIBELF-1675523
  • published 27 Sep 2021
  • disclosed 19 Oct 2018
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Introduced: 19 Oct 2018

CVE-2018-18521 Open this link in a new tab
CWE-369 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 elfutils-libelf to version 0:0.176-2.amzn2 or higher.
This issue was patched in ALAS2-2019-1337.

NVD Description

Note: Versions mentioned in the description apply only to the upstream elfutils-libelf package and not the elfutils-libelf package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled.