Vulnerability Name:

CVE-2015-6654 (CCN-105992)

Assigned:2015-09-01
Published:2015-09-01
Updated:2016-12-07
Summary:The xenmem_add_to_physmap_one function in arch/arm/mm.c in Xen 4.5.x, 4.4.x, and earlier does not limit the number of printk console messages when reporting a failure to retrieve a reference on a foreign page, which allows remote domains to cause a denial of service by leveraging permissions to map the memory of a foreign guest.
CVSS v3 Severity:2.5 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L)
2.2 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:2.1 Low (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
1.0 Low (CCN CVSS v2 Vector: AV:L/AC:H/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-264
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2015-6654

Source: DEBIAN
Type: UNKNOWN
DSA-3414

Source: SECTRACK
Type: UNKNOWN
1033438

Source: CCN
Type: Xen Security Advisory XSA-141
printk is not rate-limited in xenmem_add_to_physmap_one

Source: CONFIRM
Type: Patch, Vendor Advisory
http://xenbits.xen.org/xsa/advisory-141.html

Source: XF
Type: UNKNOWN
xen-cve20156654-dos(105992)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-6654

Vulnerable Configuration:Configuration 1:
  • cpe:/o:xen:xen:4.4.0:*:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.5.0:*:*:*:*:*:*:*
  • OR cpe:/o:xen:xen:4.5.1:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:xensource:xen:4.4:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.5:*:*:*:*:*:*:*

    • * 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:20156654000
    V
    		CVE-2015-6654 on Ubuntu 12.04 LTS (precise) - low.
    2015-09-03
    oval:com.ubuntu.trusty:def:20156654000
    V
    		CVE-2015-6654 on Ubuntu 14.04 LTS (trusty) - low.
    2015-09-03
    BACK
    xen xen 4.4.0
    xen xen 4.5.0
    xen xen 4.5.1
    xensource xen 4.4
    xensource xen 4.5