Vulnerability Name:

CVE-2018-12327

Assigned:2018-06-20
Published:2018-06-20
Updated:2018-08-10
Summary:Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.
CVSS v3 Severity:9.8 Critical (CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.9 High (Temporal CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:R)
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): High
Integrity (I): High
Availibility (A): High
5.9 Medium (CCN CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
5.4 Medium (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
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
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-119
References:Source: BID
Type: VENDOR_ADVISORY
104517

Source: XF
Type: UNKNOWN
ntp-cve201812327(145120)

Source: MISC
Type: VENDOR_ADVISORY
https://gist.github.com/fakhrizulkifli/9b58ed8e0354e8deee50b0eebd1c011f

Source: EXPLOIT-DB
Type: VENDOR_ADVISORY
44909

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ntp:ntp:4.2.8:p11:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.artful:def:201812327000
    V
    CVE-2018-12327 on Ubuntu 17.10 (artful) - negligible.
    2018-06-20
    oval:com.ubuntu.trusty:def:201812327000
    V
    CVE-2018-12327 on Ubuntu 14.04 LTS (trusty) - negligible.
    2018-06-20
    oval:com.ubuntu.xenial:def:201812327000
    V
    CVE-2018-12327 on Ubuntu 16.04 LTS (xenial) - negligible.
    2018-06-20
    BACK
    ntp ntp 4.2.8 p11