CVE-2015-2672

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection against instruction faulting, which allows local users to cause a denial of service (panic) by triggering a fault, as demonstrated by an unaligned memory operand or a non-canonical address memory operand.

La implementación de xsave/xrstor en arch/x86/include/asm/xsave.h en el kernel de Linux en versiones anteriores a 3.19.2 crea determinados punteros .altinstr_replacement y consecuentemente no provee ninguna protección contra fallo de instrucciones, lo que permite a usuarios locales provocar una denegación de servicio (pánico) desencadenando un fallo, según lo demostrado por un operando de memoria no alineada o un operando de dirección de memoria no canónico.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

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

2015-03-21 CVE Reserved
2016-05-02 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 (5)

URL	Tag	Source
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2015/03/22/1	Mailing List
https://bugzilla.redhat.com/show_bug.cgi?id=1204729	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06c8173eb92bbfc03a0fe8bb64315857d0badd06	2016-05-06
https://github.com/torvalds/linux/commit/06c8173eb92bbfc03a0fe8bb64315857d0badd06	2016-05-06

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"				<= 3.19.1 Search vendor "Linux" for product "Linux Kernel" and version " <= 3.19.1"		-		Affected