CVE-2015-7553

kernel: nfnetlink race in NETLINK_NFLOG socket creation

Severity Score

4.7

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Race condition in the kernel in Red Hat Enterprise Linux 7, kernel-rt and Red Hat Enterprise MRG 2, when the nfnetlink_log module is loaded, allows local users to cause a denial of service (panic) by creating netlink sockets.

Una condición de carrera en el kernel en Red Hat Enterprise Linux 7, kernel-rt y Red Hat Enterprise MRG 2 permite que usuarios locales provoquen una denegación de servicio (pánico) mediante la creación de sockets netlink cuando se carga el módulo nfnetlink_log.

A race-condition flaw was discovered in the kernel's netlink module creation, which can trigger a kernel panic in netlink_release->module_put for local users creating netlink sockets. The flaw is specific to Red Hat Enterprise Linux and does not affect upstream kernels. The nfnetlink_log module must be loaded before the flaw can occur.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

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

2015-09-29 CVE Reserved
2017-09-14 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1288934	2015-11-19
https://access.redhat.com/security/cve/CVE-2015-7553	2015-11-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Mrg Search vendor "Redhat" for product "Enterprise Mrg"				2.0 Search vendor "Redhat" for product "Enterprise Mrg" and version "2.0"		-		Affected
Redhat Search vendor "Redhat"		Kernel-rt Search vendor "Redhat" for product "Kernel-rt"				-		-		Affected