CVE-2015-8872
Published: 31 December 2015
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."
Priority
Status
Package | Release | Status |
---|---|---|
dosfstools Launchpad, Ubuntu, Debian |
precise |
Released
(3.0.12-1ubuntu1.3)
|
trusty |
Released
(3.0.26-1ubuntu0.1)
|
|
upstream |
Released
(4.0-1)
|
|
wily |
Released
(3.0.28-1ubuntu0.1)
|
|
xenial |
Released
(3.0.28-2ubuntu0.1)
|
|
yakkety |
Not vulnerable
(4.0-2ubuntu1)
|
|
zesty |
Not vulnerable
(4.0-2ubuntu1)
|
|
Patches: upstream: https://github.com/dosfstools/dosfstools/commit/39ce90fe75661ed8842551cd44ea7fec278a60a1 upstream: https://github.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.2 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |