Out-of-Bounds Affecting elfutils package, versions <0:0.176-2.el7


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.21% (59th percentile)

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  • Snyk IDSNYK-CENTOS7-ELFUTILS-2144624
  • published26 Jul 2021
  • disclosed17 Oct 2018

Introduced: 17 Oct 2018

CVE-2018-18520  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Centos:7 elfutils to version 0:0.176-2.el7 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 Centos. See How to fix? for Centos:7 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.

CVSS Scores

version 3.1