CVE-2017-13704 Detail

Current Description

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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://thekelleys.org.uk/dnsmasq/CHANGELOG Release Notes  Vendor Advisory 
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=63437ffbb58837b214b4b92cb1c54bc5f3279928 Patch  Vendor Advisory 
http://www.securityfocus.com/bid/101085 Third Party Advisory  VDB Entry 
http://www.securityfocus.com/bid/101977
http://www.securitytracker.com/id/1039474 Third Party Advisory  VDB Entry 
https://access.redhat.com/security/vulnerabilities/3199382 Issue Tracking  Third Party Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK/ Third Party Advisory 
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html Third Party Advisory 
https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11664.html Mailing List  Third Party Advisory 
https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11665.html Mailing List  Third Party Advisory 
https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation cwe source acceptance level NIST  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-13704
NVD Published Date:
10/02/2017
NVD Last Modified:
05/10/2018
Source:
MITRE