7.5

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 17.04
Debian ≫ Debian Linux Version 7.0
Debian ≫ Debian Linux Version 7.1
Debian ≫ Debian Linux Version 9.0
Fedoraproject ≫ Fedora Version 27
Novell ≫ Leap Version 42.2
Novell ≫ Leap Version 42.3
Thekelleys ≫ Dnsmasq Version <= 2.77
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 65.41% 0.992
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

http://thekelleys.org.uk/dnsmasq/CHANGELOG
Vendor Advisory
Release Notes
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=63437ffbb58837b214b4b92cb1c54bc5f3279928
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
Third Party Advisory
Issue Tracking
https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK/
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
Third Party Advisory
https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html
https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html
https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq