CVE - CVE-2017-13704

CVE-ID
CVE-2017-13704	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[dnsmasq-discuss] 20171002 Announce: dnsmasq-2.78. URL:https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11665.html MLIST:[dnsmasq-discuss] 20171002 IMPORTANT SECURITY INFORMATION. URL:https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11664.html MISC:https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html CONFIRM:http://thekelleys.org.uk/dnsmasq/CHANGELOG CONFIRM:http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=63437ffbb58837b214b4b92cb1c54bc5f3279928 CONFIRM:https://access.redhat.com/security/vulnerabilities/3199382 CONFIRM:https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq CONFIRM:https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf FEDORA:FEDORA-2017-274d763ed8 URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK/ BID:101085 URL:http://www.securityfocus.com/bid/101085 BID:101977 URL:http://www.securityfocus.com/bid/101977 SECTRACK:1039474 URL:http://www.securitytracker.com/id/1039474
Assigning CNA
MITRE Corporation
Date Entry Created
20170825	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20170825)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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