Vulnerability CVE-2017-14493

Vulnerability CVE-2017-14493

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

Description:

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.

See advisories in our WLB2 database:

	Topic	Author	Date
Med.	Dnsmasq < 2.78 Stack-Based Overflow	Multiple	03.10.2017

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

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

CVSS Base Score	Impact Subscore	Exploitability Subscore
7.5/10	6.4/10	10/10

Exploit range	Attack complexity	Authentication
Remote	Low	No required
Confidentiality impact	Integrity impact	Availability impact
Partial	Partial	Partial

Affected software
Thekelleys -> Dnsmasq
Redhat -> Enterprise linux desktop
Redhat -> Enterprise linux server
Redhat -> Enterprise linux workstation
Opensuse -> LEAP
Novell -> LEAP
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=3d4ff1ba8419546490b464418223132529514033

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.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/errata/RHSA-2017:2837

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

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/42943/

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-2017-14493

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.

See advisories in our WLB2 database:

Med.

Dnsmasq < 2.78 Stack-Based Overflow

CWE-119

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

7.5/10

6.4/10

10/10

Remote

Low

No required

Partial

Partial

Partial

Affected software

References: