Access Restriction Bypass Affecting grub2 package, versions <2.00-20


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-ECHOLATEST-GRUB2-20137906
  • published25 Sept 2026
  • disclosed12 May 2014

Introduced: 12 May 2014

CVE-2013-4577  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Echo:latest grub2 to version 2.00-20 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2 package and not the grub2 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A certain Debian patch for GNU GRUB uses world-readable permissions for grub.cfg, which allows local users to obtain password hashes, as demonstrated by reading the password_pbkdf2 directive in the file.

CVSS Base Scores

version 3.1