CVE-2019-17351

Ubuntu Security Notice USN-4286-1

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in drivers/xen/balloon.c in the Linux kernel before 5.2.3, as used in Xen through 4.12.x, allowing guest OS users to cause a denial of service because of unrestricted resource consumption during the mapping of guest memory, aka CID-6ef36ab967c7.

Se detectó un problema en el archivo drivers/xen/balloon.c en el kernel de Linux versiones anteriores a 5.2.3, como es usado en Xen versiones hasta 4.12.x, permitiendo a usuarios del sistema operativo invitado causar una denegación de servicio debido al consumo de recursos sin restricciones durante la asignación de la memoria de invitado , también se conoce como CID-6ef36ab967c7.

USN-4286-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

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

2019-10-07 CVE Reserved
2019-10-08 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (8)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2019/10/25/9	Mailing List
http://xenbits.xen.org/xsa/advisory-300.html	X_refsource_confirm
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3	Third Party Advisory
https://security.netapp.com/advisory/ntap-20191031-0005	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
https://github.com/torvalds/linux/commit/6ef36ab967c71690ebe7e5ef997a8be4da3bc844	2020-08-24

URL	Date	SRC
https://usn.ubuntu.com/4286-1	2020-08-24
https://usn.ubuntu.com/4286-2	2020-08-24
https://xenbits.xen.org/xsa/advisory-300.html	2020-08-24

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				<= 4.12.1 Search vendor "Xen" for product "Xen" and version " <= 4.12.1"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.2.3 Search vendor "Linux" for product "Linux Kernel" and version " < 5.2.3"		-		Affected