CVE-2016-10208

kernel: EXT4 memory corruption / SLAB out-of-bounds read

Severity Score

4.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allows physically proximate attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image.

La función ext4_fill_super en fs/ext4/super.c en el kernel de Linux hasta la versión 4.9.8 no valida correctamente los grupos de bloque meta, lo que permite a atacantes físicamente próximos provocar una denegación de servicio (lectura fuera de límites y caída del sistema) a través de una imagen ext4 manipulada.

Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads.

USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please note that this update changes the Linux HWE kernel to the 4.10 based kernel from Ubuntu 17.04, superseding the 4.8 based HWE kernel from Ubuntu 16.10. Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when performing a failed unprivileged system call. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

*Credits: N/A

CVSS Scores

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-02-04 CVE Reserved
2017-02-06 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (12)

URL	Tag	Source
http://seclists.org/fulldisclosure/2016/Nov/75	Mailing List
http://www.securityfocus.com/bid/94354	Vdb Entry
https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html	Mailing List

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a4b77cd47bb837b8557595ec7425f281f2ca1fe	2018-08-24
http://www.openwall.com/lists/oss-security/2017/02/05/3	2018-08-24
https://bugzilla.redhat.com/show_bug.cgi?id=1395190	2017-05-25
https://github.com/torvalds/linux/commit/3a4b77cd47bb837b8557595ec7425f281f2ca1fe	2018-08-24

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2017:1297	2018-08-24
https://access.redhat.com/errata/RHSA-2017:1298	2018-08-24
https://access.redhat.com/errata/RHSA-2017:1308	2018-08-24
https://usn.ubuntu.com/3754-1	2018-08-24
https://access.redhat.com/security/cve/CVE-2016-10208	2017-05-25

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 4.9.8 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.9.8"		-		Affected