Vulnerability CVE-2017-14495

Vulnerability CVE-2017-14495

Published: 2017-10-02 Modified: 2017-10-03

Description:

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.

See advisories in our WLB2 database:

	Topic	Author	Date
Med.	Dnsmasq < 2.78 Lack of free() Denial of Service	Multiple	03.10.2017

Type:

CWE-772

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score	Impact Subscore	Exploitability Subscore
5/10	2.9/10	10/10

Exploit range	Attack complexity	Authentication
Remote	Low	No required
Confidentiality impact	Integrity impact	Availability impact
None	None	Partial

Affected software
Thekelleys -> Dnsmasq
Redhat -> Enterprise linux desktop
Redhat -> Enterprise linux server
Redhat -> Enterprise linux workstation
Debian -> Debian linux
Canonical -> Ubuntu linux

References:

http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html

http://nvidia.custhelp.com/app/answers/detail/a_id/4561

http://thekelleys.org.uk/dnsmasq/CHANGELOG

http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=51eadb692a5123b9838e5a68ecace3ac579a3a45

http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt

http://www.debian.org/security/2017/dsa-3989

http://www.securityfocus.com/bid/101085

http://www.securityfocus.com/bid/101977

http://www.securitytracker.com/id/1039474

http://www.ubuntu.com/usn/USN-3430-1

http://www.ubuntu.com/usn/USN-3430-2

https://access.redhat.com/errata/RHSA-2017:2836

https://access.redhat.com/security/vulnerabilities/3199382

https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf

https://security.gentoo.org/glsa/201710-27

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

https://www.exploit-db.com/exploits/42945/

https://www.kb.cert.org/vuls/id/973527

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

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

https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq

Vulnerability CVE-2017-14495

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.

See advisories in our WLB2 database:

Med.

Dnsmasq < 2.78 Lack of free() Denial of Service

CWE-772

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

5/10

2.9/10

10/10

Remote

Low

No required

None

None

Partial

Affected software

References: