Vulnerability Name:

CVE-2015-8338 (CCN-108609)

Assigned:2015-12-08
Published:2015-12-08
Updated:2016-12-07
Summary:Xen 4.6.x and earlier does not properly enforce limits on page order inputs for the (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange, and possibly other HYPERVISOR_memory_op suboperations, which allows ARM guest OS administrators to cause a denial of service (CPU consumption, guest reboot, or watchdog timeout and host reboot) and possibly have unspecified other impact via unknown vectors.
CVSS v3 Severity:6.5 Medium (CCN 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 (CCN 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
CVSS v2 Severity:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-254
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2015-8338

Source: DEBIAN
Type: UNKNOWN
DSA-3633

Source: BID
Type: UNKNOWN
78920

Source: CCN
Type: BID-78920
Xen CVE-2015-8338 Denial of Service Vulnerability

Source: SECTRACK
Type: UNKNOWN
1034390

Source: CCN
Type: Xen Security Advisory XSA-158
long running memory operations on ARM

Source: CONFIRM
Type: Vendor Advisory
http://xenbits.xen.org/xsa/advisory-158.html

Source: XF
Type: UNKNOWN
xen-cve20158338-dos(108609)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-8338

Vulnerable Configuration:Configuration 1:
  • cpe:/o:xen:xen:*:*:*:*:*:*:*:* (Version <= 4.6.0)

    • Configuration CCN 1:
  • cpe:/a:xensource:xen:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.cisecurity:def:1012
    P
    		DSA-3633-1 -- xen -- security update
    2016-09-16
    oval:com.ubuntu.precise:def:20158338000
    V
    		CVE-2015-8338 on Ubuntu 12.04 LTS (precise) - medium.
    2015-12-17
    oval:com.ubuntu.trusty:def:20158338000
    V
    		CVE-2015-8338 on Ubuntu 14.04 LTS (trusty) - medium.
    2015-12-17
    BACK
    xen xen *
    xensource xen *