Vulnerability Name:

CVE-2017-14493

Assigned:2017-09-15
Published:2017-10-02
Updated:2017-10-23
Summary:Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DHCPv6 request.
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)
9.1 Critical (Temporal CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/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): High
Integrity (I): High
Availibility (A): High
9.8 Critical (CCN CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
9.1 Critical (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/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): High
Integrity (I): High
Availibility (A): High
8.8 High (REDHAT CVSS v3 Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.2 High (REDHAT Temporal CVSS v3 Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
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
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
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
8.3 High (REDHAT CVSS v2 Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-119
CWE-121
References:Source: SUSE
Type: VENDOR_ADVISORY
openSUSE-SU-2017:2633

Source: CONFIRM
Type: UNKNOWN
http://nvidia.custhelp.com/app/answers/detail/a_id/4561

Source: CONFIRM
Type: VENDOR_ADVISORY
http://thekelleys.org.uk/dnsmasq/CHANGELOG

Source: CONFIRM
Type: VENDOR_ADVISORY
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=3d4ff1ba8419546490b464418223132529514033

Source: DEBIAN
Type: VENDOR_ADVISORY
DSA-3989

Source: BID
Type: VENDOR_ADVISORY
101085

Source: SECTRACK
Type: VENDOR_ADVISORY
1039474

Source: UBUNTU
Type: VENDOR_ADVISORY
USN-3430-1

Source: UBUNTU
Type: VENDOR_ADVISORY
USN-3430-2

Source: REDHAT
Type: VENDOR_ADVISORY
RHSA-2017:2836

Source: REDHAT
Type: VENDOR_ADVISORY
RHSA-2017:2837

Source: CONFIRM
Type: VENDOR_ADVISORY
https://access.redhat.com/security/vulnerabilities/3199382

Source: XF
Type: UNKNOWN
dnsmasq-cve201714493-bo(132933)

Source: GENTOO
Type: UNKNOWN
GLSA-201710-27

Source: MISC
Type: VENDOR_ADVISORY
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html

Source: EXPLOIT-DB
Type: VENDOR_ADVISORY
42943

Source: CERT-VN
Type: VENDOR_ADVISORY
VU#973527

Source: MLIST
Type: VENDOR_ADVISORY
[dnsmasq-discuss] 20171002 IMPORTANT SECURITY INFORMATION.

Source: MLIST
Type: VENDOR_ADVISORY
[dnsmasq-discuss] 20171002 Announce: dnsmasq-2.78.

Vulnerable Configuration:Configuration 1:
  • cpe:/o:canonical:ubuntu_linux:14.04::~~lts~~~:*:*:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04::~~lts~~~:*:*:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:7.1:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:novell:leap:42.2:*:*:*:*:*:*:*
  • OR cpe:/o:novell:leap:42.3:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/a:thekelleys:dnsmasq:2.77:*:*:*:*:*:*:*

  • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*

  • Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201714493
    V
    CVE-2017-14493
    2017-12-15
    oval:com.ubuntu.xenial:def:201714493000
    V
    CVE-2017-14493 on Ubuntu 16.04 LTS (xenial) - high.
    2017-10-02
    oval:com.ubuntu.trusty:def:201714493000
    V
    CVE-2017-14493 on Ubuntu 14.04 LTS (trusty) - high.
    2017-10-02
    oval:com.redhat.rhsa:def:20172836
    P
    RHSA-2017:2836: dnsmasq security update (Critical)
    2017-10-02
    BACK
    canonical ubuntu_linux 14.04
    canonical ubuntu_linux 16.04
    canonical ubuntu_linux 17.04
    debian debian_linux 7.0
    debian debian_linux 7.1
    debian debian_linux 9.0
    novell leap 42.2
    novell leap 42.3
    redhat enterprise_linux_desktop 7.0
    redhat enterprise_linux_server 7.0
    redhat enterprise_linux_workstation 7.0
    thekelleys dnsmasq 2.77
    redhat enterprise_linux 7