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


Severity

Recommended
low

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
2.79% (85th percentile)

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  • Snyk IDSNYK-ORACLE7-ELFUTILSLIBS-2536516
  • published10 Apr 2022
  • disclosed19 Oct 2018

Introduced: 19 Oct 2018

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

How to fix?

Upgrade Oracle:7 elfutils-libs to version 0:0.176-2.el7 or higher.
This issue was patched in ELSA-2019-2197.

NVD Description

Note: Versions mentioned in the description apply only to the upstream elfutils-libs package and not the elfutils-libs package as distributed by Oracle. See How to fix? for Oracle: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 Base Scores

version 3.1