Vulnerability Name:

CVE-2017-14495

Assigned:2017-09-15
Published:2017-10-02
Updated:2017-10-18
Summary:Memory leak in dnsmasq before 2.78, when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service (memory consumption) via vectors involving DNS response creation.
CVSS v3 Severity:7.5 High (CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
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): 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)
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
7.5 High (REDHAT CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
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): High
CVSS v2 Severity:5.0 Medium (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (REDHAT CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-399
CWE-400
References:Source: SUSE
Type: VENDOR_ADVISORY
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html

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=51eadb692a5123b9838e5a68ecace3ac579a3a45

Source: DEBIAN
Type: VENDOR_ADVISORY
http://www.debian.org/security/2017/dsa-3989

Source: BID
Type: VENDOR_ADVISORY
101085

Source: SECTRACK
Type: VENDOR_ADVISORY
1039474

Source: UBUNTU
Type: VENDOR_ADVISORY
http://www.ubuntu.com/usn/USN-3430-1

Source: UBUNTU
Type: VENDOR_ADVISORY
http://www.ubuntu.com/usn/USN-3430-2

Source: REDHAT
Type: VENDOR_ADVISORY
https://access.redhat.com/errata/RHSA-2017:2836

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

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
42945

Source: CERT-VN
Type: VENDOR_ADVISORY
https://www.kb.cert.org/vuls/id/973527

Source: MLIST
Type: VENDOR_ADVISORY
https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11664.html

Source: MLIST
Type: VENDOR_ADVISORY
https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11665.html

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:201714495
    V
    CVE-2017-14495
    2017-10-22
    oval:com.ubuntu.xenial:def:201714495000
    V
    CVE-2017-14495 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-10-02
    oval:com.ubuntu.trusty:def:201714495000
    V
    CVE-2017-14495 on Ubuntu 14.04 LTS (trusty) - medium.
    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