Vulnerability CVE-2019-17351

Vulnerability Name:

CVE-2019-17351 (CCN-163499)

Assigned:

2019-07-09

Published:

2019-07-09

Updated:

2020-08-24

Summary:

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.

CVSS v3 Severity:

6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

7.1 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
6.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

CVSS v2 Severity:

4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

Vulnerability Type:

CWE-770

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2019-17351

Source: MLIST
Type: UNKNOWN
[oss-security] 20191025 Xen Security Advisory 300 v3 (CVE-2019-17351) - Linux: No grant table and foreign mapping limits

Source: CCN
Type: Xen Security Advisory XSA-300
Linux: No grant table and foreign mapping limits

Source: CONFIRM
Type: UNKNOWN
http://xenbits.xen.org/xsa/advisory-300.html

Source: MISC
Type: Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3

Source: XF
Type: UNKNOWN
xen-foreign-mapping-dos(163499)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/6ef36ab967c71690ebe7e5ef997a8be4da3bc844

Source: CONFIRM
Type: UNKNOWN
https://security.netapp.com/advisory/ntap-20191031-0005/

Source: UBUNTU
Type: UNKNOWN
USN-4286-1

Source: UBUNTU
Type: UNKNOWN
USN-4286-2

Source: MISC
Type: Vendor Advisory
https://xenbits.xen.org/xsa/advisory-300.html

Vulnerable Configuration:

Configuration 1:

cpe:/o:xen:xen:*:*:*:*:*:*:*:* (Version <= 4.12.1)

Configuration 2:

cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 5.2.3)

Configuration CCN 1:

cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:*

OR cpe:/a:xensource:xen:*:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.disco:def:2019173510000000	V	CVE-2019-17351 on Ubuntu 19.04 (disco) - low.	2019-10-08
oval:com.ubuntu.bionic:def:2019173510000000	V	CVE-2019-17351 on Ubuntu 18.04 LTS (bionic) - low.	2019-10-08
oval:com.ubuntu.xenial:def:2019173510000000	V	CVE-2019-17351 on Ubuntu 16.04 LTS (xenial) - low.	2019-10-08

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