Vulnerability Name:

CVE-2015-7812 (CCN-107664)

Assigned:2015-10-29
Published:2015-10-29
Updated:2018-10-30
Summary:The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface.
CVSS v3 Severity:4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/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): Low
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
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-254
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2015-7812

Source: FEDORA
Type: UNKNOWN
FEDORA-2015-a931b02be2

Source: FEDORA
Type: UNKNOWN
FEDORA-2015-6f6b79efe2

Source: FEDORA
Type: UNKNOWN
FEDORA-2015-242be2c240

Source: DEBIAN
Type: UNKNOWN
DSA-3414

Source: SECTRACK
Type: UNKNOWN
1034031

Source: CCN
Type: Xen Security Advisory XSA-145
arm: Host crash when preempting a multicall

Source: CONFIRM
Type: Patch, Vendor Advisory
http://xenbits.xen.org/xsa/advisory-145.html

Source: XF
Type: UNKNOWN
xen-cve20157812-dos(107664)

Source: GENTOO
Type: UNKNOWN
GLSA-201604-03

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-7812

Vulnerable Configuration:Configuration 1:
  • cpe:/o:xen:xen:4.4.0:*:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.4.1:-:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.4.2:*:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.4.3:*:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.5.0:*:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.5.1:*:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.5.2:*:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.6.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:xensource:xen:4.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.cisecurity:def:336
    P
    		DSA-3414-1 -- xen -- security update
    2016-02-19
    oval:com.ubuntu.precise:def:20157812000
    V
    		CVE-2015-7812 on Ubuntu 12.04 LTS (precise) - medium.
    2015-11-17
    oval:com.ubuntu.trusty:def:20157812000
    V
    		CVE-2015-7812 on Ubuntu 14.04 LTS (trusty) - medium.
    2015-11-17
    BACK
    xen xen 4.4.0
    xen xen 4.4.1 -
    xen xen 4.4.2
    xen xen 4.4.3
    xen xen 4.5.0
    xen xen 4.5.1
    xen xen 4.5.2
    xen xen 4.6.0
    xensource xen 4.4