CVE-2018-11412

Linux Kernel < 4.16.11 - 'ext4_read_inline_data()' Memory Corruption

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.

En el kernel de Linux de la versión 4.13 hasta la 4.16.11, ext4_read_inline_data() en fs/ext4/inline.c realiza un memcpy con un valor de longitud no fiable en ciertas circunstancias que implica un sistema de archivos manipulado que almacena el valor de atributo extendido system.data en un nodo dedicado.

The fs/ext4/inline.c:ext4_read_inline_data() function in the Linux kernel performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode. The unbound copy can cause memory corruption or possible privilege escalation.

Linux Kernel versions prior to 4.16.11 suffer from an ext4_read_inline_data() memory corruption vulnerability.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-05-24 CVE Reserved
2018-05-24 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-416: Use After Free
CWE-805: Buffer Access with Incorrect Length Value

CAPEC

References (10)

URL	Tag	Source
http://www.securityfocus.com/bid/104291	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/44832	2024-08-05
https://bugs.chromium.org/p/project-zero/issues/detail?id=1580	2024-08-05
https://bugzilla.kernel.org/show_bug.cgi?id=199803	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:0525	2019-03-15
https://usn.ubuntu.com/3752-1	2019-03-15
https://usn.ubuntu.com/3752-2	2019-03-15
https://usn.ubuntu.com/3752-3	2019-03-15
https://access.redhat.com/security/cve/CVE-2018-11412	2019-03-13
https://bugzilla.redhat.com/show_bug.cgi?id=1582358	2019-03-13

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"				>= 4.13 <= 4.16.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 <= 4.16.11"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected