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Vulnerability Details : CVE-2017-13704

In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
Publish Date : 2017-10-02 Last Update Date : 2018-05-10
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 20

- Products Affected By CVE-2017-13704

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 17.04 Version Details Vulnerabilities
4 OS Debian Debian Linux 7.0 Version Details Vulnerabilities
5 OS Debian Debian Linux 7.1 Version Details Vulnerabilities
6 OS Debian Debian Linux 9.0 Version Details Vulnerabilities
7 OS Fedoraproject Fedora 27 Version Details Vulnerabilities
8 OS Novell Leap 42.2 Version Details Vulnerabilities
9 OS Novell Leap 42.3 Version Details Vulnerabilities
10 OS Redhat Enterprise Linux Desktop 7.0 Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Server 7.0 Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Workstation 7.0 Version Details Vulnerabilities
13 Application Thekelleys Dnsmasq 2.77 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Debian Debian Linux 3
Fedoraproject Fedora 1
Novell Leap 2
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Workstation 1
Thekelleys Dnsmasq 1

- References For CVE-2017-13704

https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq CONFIRM
https://access.redhat.com/security/vulnerabilities/3199382 CONFIRM
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
http://thekelleys.org.uk/dnsmasq/CHANGELOG CONFIRM
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=63437ffbb58837b214b4b92cb1c54bc5f3279928 CONFIRM
http://www.securityfocus.com/bid/101085
BID 101085 Dnsmasq VU#973527 Multiple Security Vulnerabilities Release Date:2019-05-15
https://lists.fedoraproject.org/archives/list/[email protected]/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK/
FEDORA FEDORA-2017-274d763ed8
https://www.mail-archive.com/[email protected]/msg11664.html
MLIST [dnsmasq-discuss] 20171002 IMPORTANT SECURITY INFORMATION.
https://www.mail-archive.com/[email protected]/msg11665.html
MLIST [dnsmasq-discuss] 20171002 Announce: dnsmasq-2.78.
https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf CONFIRM
http://www.securityfocus.com/bid/101977
BID 101977 RETIRED: Multiple Siemens SCALANCE Products Multiple Security Vulnerabilities Release Date:2019-05-15
http://www.securitytracker.com/id/1039474
SECTRACK 1039474

- Metasploit Modules Related To CVE-2017-13704

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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