CVE-2018-14656

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A missing address check in the callers of the show_opcodes() in the Linux kernel allows an attacker to dump the kernel memory at an arbitrary kernel address into the dmesg log.

La falta de una comprobación de direcciones en los llamantes de show_opcodes() en el kernel de Linux permite que un atacante vuelque la memoria del kernel en una dirección arbitraria del kernel en el registro dmesg.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-07-27 CVE Reserved
2018-10-08 CVE Published
2023-10-02 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (6)

URL	Tag	Source
http://www.securitytracker.com/id/1041804	Third Party Advisory
https://lore.kernel.org/lkml/20180828154901.112726-1-jannh%40google.com/T	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
https://bugs.chromium.org/p/project-zero/issues/detail?id=1650	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14656	2023-02-13
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=342db04ae71273322f0011384a9ed414df8bdae4	2023-02-13
https://seclists.org/oss-sec/2018/q4/9	2023-02-13

URL	Date	SRC

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"				<= 4.18 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.18"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.19 Search vendor "Linux" for product "Linux Kernel" and version "4.19"		rc1		Affected