CVE-2015-8872 Information

Description

The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem which triggers an \off-by-two error.\

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-updates/2016-06/msg00001.html http://lists.opensuse.org/opensuse-updates/2016-09/msg00014.html http://www.securityfocus.com/bid/90311 http://www.ubuntu.com/usn/USN-2986-1 https://blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.html https://github.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7 https://github.com/dosfstools/dosfstools/issues/12 https://github.com/dosfstools/dosfstools/releases/tag/v4.0 https://lists.debian.org/debian-lts-announce/2020/05/msg00028.html

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

6.2