CVE-2010-5313

kernel: kvm: reporting emulation failures to userspace

Severity Score

4.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Race condition in arch/x86/kvm/x86.c in the Linux kernel before 2.6.38 allows L2 guest OS users to cause a denial of service (L1 guest OS crash) via a crafted instruction that triggers an L2 emulation failure report, a similar issue to CVE-2014-7842.

Condición de carrera en arch/x86/kvm/x86.c en el kernel de Linux anterior a 2.6.38 permite a usuarios del sistema operativo L2 invitado causar una denegación de servicio (caída del sistema operativo L1 invitado) a través de una instrucción manipulada que provoca un informe de fallo de emulación en L2, un problema similar a CVE-2014-7842.

It was found that reporting emulation failures to user space could lead to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain systems, HPET is mapped to userspace as part of vdso (vvar) and thus an unprivileged user may generate MMIO transactions (and enter the emulator) this way.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-11-29 CVE Reserved
2014-11-30 CVE Published
2023-03-08 EPSS Updated
2024-08-07 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 (12)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc3a9157d3148ab91039c75423da8ef97be3e105	X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html	X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html	X_refsource_confirm
http://www.securityfocus.com/bid/71363	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2014/11/13/7	2023-11-07
https://github.com/torvalds/linux/commit/fc3a9157d3148ab91039c75423da8ef97be3e105	2023-11-07

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html	2023-11-07
http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.38	2023-11-07
http://rhn.redhat.com/errata/RHSA-2016-0855.html	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=1163762	2016-05-10
https://access.redhat.com/security/cve/CVE-2010-5313	2016-05-10

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"				<= 2.6.37 Search vendor "Linux" for product "Linux Kernel" and version " <= 2.6.37"		-		Affected