Improper Authentication Affecting grub2 package, versions <1.97+20091115-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.09% (39th percentile)

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  • Snyk IDSNYK-DEBIAN13-GRUB2-5681732
  • published1 Dec 2009
  • disclosed1 Dec 2009

Introduced: 1 Dec 2009

CVE-2009-4128  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade Debian:13 grub2 to version 1.97+20091115-1 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 Debian. See How to fix? for Debian:13 relevant fixed versions and status.

GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with the actual password, which makes it easier for physically proximate attackers to conduct brute force attacks and bypass authentication by submitting a password whose length is 1.

CVSS Scores

version 3.1