CVE-2017-9763 Information

Description

The grub_ext2_read_block function in fs/ext2.c in GNU GRUB before 2013-11-12 as used in shlr/grub/fs/ext2.c in radare2 1.5.0 allows remote attackers to cause a denial of service (excessive stack use and application crash) via a crafted binary file related to use of a variable-size stack array.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://git.savannah.gnu.org/cgit/grub.git/commit/grub-core/fs/ext2.c?id=ac8cac1dac50daaf1c390d701cca3b55e16ee768 http://www.securityfocus.com/bid/99141 https://github.com/radare/radare2/commit/65000a7fd9eea62359e6d6714f17b94a99a82edd https://github.com/radare/radare2/issues/7723

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5