CVE-2014-2673

kernel: powerpc: tm: crash when forking inside a transaction

Severity Score

4.7

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The arch_dup_task_struct function in the Transactional Memory (TM) implementation in arch/powerpc/kernel/process.c in the Linux kernel before 3.13.7 on the powerpc platform does not properly interact with the clone and fork system calls, which allows local users to cause a denial of service (Program Check and system crash) via certain instructions that are executed with the processor in the Transactional state.

La función arch_dup_task_struct en la implementación Transactional Memory (TM) en arch/powerpc/kernel/process.c en el kernel de Linux anterior a 3.13.7 en la plataforma powerpc no interactúa debidamente con las llamadas de sistema clon y fork, lo que permite a usuarios locales causar una denegación de servicio (comprobación de programa y caída de sistema) a través de ciertas instrucciones que son ejecutadas con el procesador en el estado transaccional.

A flaw was found in the way the Linux kernel performed forking inside of a transaction. A local, unprivileged user on a PowerPC system that supports transactional memory could use this flaw to crash the system.

*Credits: N/A

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

2014-03-30 CVE Reserved
2014-04-01 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (10)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=621b5060e823301d0cba4cb52a7ee3491922d291	X_refsource_confirm
http://secunia.com/advisories/57436	Third Party Advisory
http://www.securityfocus.com/bid/66477	Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/92113	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2014/03/30/5	2023-11-07
https://github.com/torvalds/linux/commit/621b5060e823301d0cba4cb52a7ee3491922d291	2023-11-07

URL	Date	SRC
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.7	2023-11-07
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.15	2023-11-07
https://access.redhat.com/security/cve/CVE-2014-2673	2014-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=1083213	2014-08-06

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"				< 3.13.7 Search vendor "Linux" for product "Linux Kernel" and version " < 3.13.7"		-		Affected