National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

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.

Source:  MITRE
Description Last Modified:  10/02/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

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

Technical Details

Vulnerability Type (View All)

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