CVE-2017-13704

Description (CNA)

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.

Affected (CNA)

CWE

No CWE identifiers supplied.

References

• http://www.securitytracker.com/id/1039474
• https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
• https://access.redhat.com/security/vulnerabilities/3199382
• http://www.securityfocus.com/bid/101085
• http://www.securityfocus.com/bid/101977
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK/
• https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html
• http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=63437ffbb58837b214b4b92cb1c54bc5f3279928
• http://thekelleys.org.uk/dnsmasq/CHANGELOG
• https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
• https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf

ADP enrichment