CVE-2015-3290

Linux Kernel - 'espfix64' Nested NMIs Interrupting Privilege Escalation

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform improperly relies on espfix64 during nested NMI processing, which allows local users to gain privileges by triggering an NMI within a certain instruction window.

Vulnerabilidad en arch/x86/entry/entry_64.S en el kernel de Linux en versiones anteriores a 4.1.6 en la plataforma x86_64, confía indebidamente en espfix64 durante el procesamiento anidado de NMI, lo que permite a usuarios locales obtener privilegios al desencadenar una NMI dentro de una cierta ventana de instrucción.

Andy Lutomirski discovered a flaw in the Linux kernel's handling of nested NMIs (non-maskable interrupts). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. Andy Lutomirski discovered a flaw that allows user to cause the Linux kernel to ignore some NMIs (non-maskable interrupts). A local unprivileged user could exploit this flaw to potentially cause the system to miss important NMIs resulting in unspecified effects. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-04-10 CVE Reserved
2015-07-23 CVE Published
2015-08-07 First Exploit
2024-08-06 CVE Updated
2026-01-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (16)

URL	Tag	Source
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b6e6a8334d56354853f9c255d1395c2ba570e0a	Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/07/22/7	Mailing List
http://www.openwall.com/lists/oss-security/2015/08/04/8	Mailing List
http://www.securityfocus.com/bid/76004	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1243465	Issue Tracking
https://github.com/torvalds/linux/commit/9b6e6a8334d56354853f9c255d1395c2ba570e0a	Third Party Advisory

URL	Date	SRC
https://packetstorm.news/files/id/132994	2015-08-07
https://www.exploit-db.com/exploits/37722	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html	2024-02-05
http://www.debian.org/security/2015/dsa-3313	2024-02-05
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6	2024-02-05
http://www.ubuntu.com/usn/USN-2687-1	2024-02-05
http://www.ubuntu.com/usn/USN-2688-1	2024-02-05
http://www.ubuntu.com/usn/USN-2689-1	2024-02-05
http://www.ubuntu.com/usn/USN-2690-1	2024-02-05
http://www.ubuntu.com/usn/USN-2691-1	2024-02-05

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"				< 3.12.47 Search vendor "Linux" for product "Linux Kernel" and version " < 3.12.47"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.13 < 3.14.54 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.13 < 3.14.54"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.15 < 3.16.35 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.15 < 3.16.35"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.17 < 3.18.22 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.17 < 3.18.22"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.19 < 4.1.6 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.1.6"		-		Affected