Vulnerability Name:

CVE-2015-5146 (CCN-104170)

Assigned:2015-06-29
Published:2015-06-29
Updated:2018-08-02
Summary:ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
Exploitability Metrics:Attack Vector (AV): Network
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): High
2.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P)
2.6 Low (Temporal CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
2.3 Low (CCN CVSS v2 Vector: AV:A/AC:M/Au:S/C:N/I:N/A:P)
1.7 Low (CCN Temporal CVSS v2 Vector: AV:A/AC:M/Au:S/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Medium
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
http://bugs.ntp.org/show_bug.cgi?id=2853

Source: MITRE
Type: CNA
CVE-2015-5146

Source: FEDORA
Type: Third Party Advisory
FEDORA-2015-77bfbc1bcd

Source: FEDORA
Type: Third Party Advisory
FEDORA-2015-14212

Source: FEDORA
Type: Third Party Advisory
FEDORA-2015-14213

Source: CCN
Type: NTP Web site
June 2015 NTP Security Vulnerability Announcement (Minor)

Source: CONFIRM
Type: Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu

Source: DEBIAN
Type: Third Party Advisory
DSA-3388

Source: BID
Type: Third Party Advisory, VDB Entry
75589

Source: CCN
Type: BID-75589
NTP CVE-2015-5146 Denial of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1034168

Source: CCN
Type: Red Hat Bugzilla – Bug 1238136
(CVE-2015-5146) CVE-2015-5146 ntp: ntpd control message crash on crafted NUL-byte in configuration directive (VU#668167)

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1238136

Source: XF
Type: UNKNOWN
ntp-remote-configuration-dos(104170)

Source: GENTOO
Type: Mitigation, Third Party Advisory, VDB Entry
GLSA-201509-01

Source: CONFIRM
Type: UNKNOWN
https://security.netapp.com/advisory/ntap-20180731-0003/

Vulnerable Configuration:Configuration 1:
  • cpe:/o:fedoraproject:fedora:21:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:22:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:23:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:debian:debian_linux:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/a:ntp:ntp:*:p2:*:*:*:*:*:* (Version <= 4.2.8)

  • Configuration CCN 1:
  • cpe:/a:ntp:ntp:4.2.7:*:*:*:*:*:*:*
  • OR cpe:/a:ntp:ntp:4.3.0:*:*:*:*:*:*:*
  • OR cpe:/a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.trusty:def:20155146000
    V
    CVE-2015-5146 on Ubuntu 14.04 LTS (trusty) - low.
    2017-08-24
    oval:org.cisecurity:def:304
    P
    DSA-3388-1 ntp -- security update
    2016-02-08
    oval:com.ubuntu.precise:def:20155146000
    V
    CVE-2015-5146 on Ubuntu 12.04 LTS (precise) - low.
    2015-07-02
    BACK
    fedoraproject fedora 21
    fedoraproject fedora 22
    fedoraproject fedora 23
    debian debian linux 7.0
    debian debian linux 8.0
    ntp ntp * p2
    ntp ntp 4.2.7
    ntp ntp 4.3.0
    ntp ntp 4.2.8 p3-rc1