Vulnerability Name:

CVE-2017-15588

Assigned:2017-10-18
Published:2017-10-18
Updated:2017-11-14
Summary:An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to execute arbitrary code on the host OS because of a race condition that can cause a stale TLB entry.
CVSS v3 Severity:7.8 High (CVSS v3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/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): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.3 Critical (CCN CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
8.1 High (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/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): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.9 Medium (CVSS v2 Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.9 Medium (CCN CVSS v2 Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-362
References:Source: BID
Type: VENDOR_ADVISORY
101490

Source: SECTRACK
Type: VENDOR_ADVISORY
1039568

Source: XF
Type: UNKNOWN
xen-tlb-entry-priv-esc(133337)

Source: CONFIRM
Type: UNKNOWN
https://support.citrix.com/article/CTX228867

Source: CONFIRM
Type: VENDOR_ADVISORY
https://xenbits.xen.org/xsa/advisory-241.html

Vulnerable Configuration:Configuration 1:
  • cpe:/o:xen:xen:4.9.0:*:*:*:*:*:*:*

  • Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201715588
    V
    CVE-2017-15588
    2017-11-19
    oval:com.ubuntu.xenial:def:201715588000
    V
    CVE-2017-15588 on Ubuntu 16.04 LTS (xenial) - untriaged.
    2017-10-18
    oval:com.ubuntu.trusty:def:201715588000
    V
    CVE-2017-15588 on Ubuntu 14.04 LTS (trusty) - untriaged.
    2017-10-18
    BACK
    xen xen 4.9.0