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Gentoo Linux: CVE-2015-8370: GRUB: Authentication bypass

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Gentoo Linux: CVE-2015-8370: GRUB: Authentication bypass

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
12/16/2015
Created
07/25/2018
Added
10/30/2017
Modified
10/30/2017

Description

Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grub_username_get function in grub-core/normal/auth.c or the (2) grub_password_get function in lib/crypto.c, which trigger an "Off-by-two" or "Out of bounds overwrite" memory error.

Solution(s)

  • gentoo-linux-upgrade-sys-boot-grub

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