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Out-of-Bounds Affecting elfutils package, versions <0.170-0.4ubuntu0.1

low

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 0.31% (70th percentile)
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NVD
6.5 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-UBUNTU1804-ELFUTILS-349165
  • published 19 Oct 2018
  • disclosed 19 Oct 2018
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Introduced: 19 Oct 2018

CVE-2018-18520 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Ubuntu:18.04 elfutils to version 0.170-0.4ubuntu0.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream elfutils package and not the elfutils package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file.