CVE-2015-8324

kernel: Null pointer dereference when mounting ext4

Severity Score

4.6

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ext4 implementation in the Linux kernel before 2.6.34 does not properly track the initialization of certain data structures, which allows physically proximate attackers to cause a denial of service (NULL pointer dereference and panic) via a crafted USB device, related to the ext4_fill_super function.

La implementación de ext4 en el kernel de Linux en versiones anteriores a 2.6.34 no rastrea correctamente la inicalización de determinadas estructuras de datos, lo que permite a atacantes físicamente próximos provocar una denegación de servicio (referencia a puntero NULL y pánico) a través de un dispositivo USB manipulado, relacionado con la función ext4_fill_super.

A NULL pointer dereference flaw was found in the way the Linux kernel's ext4 file system driver handled certain corrupted file system images. An attacker with physical access to the system could use this flaw to crash the system.

*Credits: N/A

Attack Vector

Physical

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

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-11-23 CVE Reserved
2016-05-02 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (8)

URL	Tag	Source
http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.34	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2015/11/23/2	Mailing List
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
https://github.com/torvalds/linux/commit/744692dc059845b2a3022119871846e74d4f6e11	2023-02-13

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=744692dc059845b2a3022119871846e74d4f6e11	2023-02-13
http://rhn.redhat.com/errata/RHSA-2016-0855.html	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=1267261	2016-05-10
https://access.redhat.com/security/cve/CVE-2015-8324	2016-05-10

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"				<= 2.6.33.20 Search vendor "Linux" for product "Linux Kernel" and version " <= 2.6.33.20"		-		Affected