CVE-2015-8872

MEDIUM

Canonical Ubuntu Linux < 3.0.28 - Numeric Error

Title source: rule

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."

References (9)

[Mailing List] http://lists.opensuse.org/opensuse-updates/2016-06/msg00001.html

[Mailing List] http://lists.opensuse.org/opensuse-updates/2016-09/msg00014.html

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/90311

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2986-1

[Vendor Advisory] https://blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.html

[Vendor Advisory] https://github.com/dosfstools/dosfstools/issues/12

[Patch] https://github.com/dosfstools/dosfstools/releases/tag/v4.0

[Mailing List] https://lists.debian.org/debian-lts-announce/2020/05/msg00028.html

[Patch] https://github.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7

Scores

CVSS v3 6.2

EPSS 0.0008

EPSS Percentile 23.2%

Attack Vector LOCAL

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

Classification

CWE

CWE-189

Status draft

Affected Products (7)

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

opensuse/leap

opensuse/opensuse

dosfstools_project/dosfstools < 3.0.28

Timeline

Published Jun 03, 2016

Tracked Since Feb 18, 2026