Vulnerability Name:

CVE-2017-16845

Assigned:2017-11-16
Published:2017-11-16
Updated:2018-05-31
Summary:hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.
CVSS v3 Severity:10.0 Critical (CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
8.7 High (Temporal CVSS v3 Vector: CVSS:3.0/AV:N/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): Network
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
5.3 Medium (CCN CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-125
References:Source: BID
Type: VENDOR_ADVISORY
101923

Source: XF
Type: UNKNOWN
qemu-cve201716845-dos(135200)

Source: MLIST
Type: VENDOR_ADVISORY
[qemu-devel] 20171116 [PATCH v2] ps2: check PS2Queue indices in post_load routine

Source: UBUNTU
Type: UNKNOWN
USN-3575-1

Source: UBUNTU
Type: UNKNOWN
USN-3649-1

Source: DEBIAN
Type: UNKNOWN
DSA-4213

Vulnerable Configuration:Configuration 1:
  • cpe:/a:qemu:qemu:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:qemu:qemu:2.0.2:*:*:*:*:*:*:*

  • Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201716845
    V
    CVE-2017-16845
    2018-07-22
    oval:com.ubuntu.trusty:def:201716845000
    V
    CVE-2017-16845 on Ubuntu 14.04 LTS (trusty) - low.
    2017-11-17
    oval:com.ubuntu.xenial:def:201716845000
    V
    CVE-2017-16845 on Ubuntu 16.04 LTS (xenial) - low.
    2017-11-17
    oval:com.ubuntu.artful:def:201716845000
    V
    CVE-2017-16845 on Ubuntu 17.10 (artful) - low.
    2017-11-17
    BACK
    qemu qemu -
    qemu qemu 2.0.2