9 matches found
Denial Of Service (DoS)
dnsmasq is vulnerable to denial of serviceDoS attacks. A remote user could send specially crafted DNS packets to cause the addpseudoheader function to allocate memory that is never freed, consuming excessive memory on the target system which leads application to crash.This issue only affects...
Dnsmasq add_pseudoheader DoS
The vulnerability of the addpseudoheader function in the Dnsmasq DNS server arises from the loss of a significant number of bits in cases where parameters addmac, addcpeid, or addsubnet are specified. Exploiting this vulnerability allows a malicious actor to cause a service failure through a...
Integer overflow
Integer underflow in the addpseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request...
CVE-2017-14496: Integer Underflow (Wrap or Wraparound)
Integer underflow in the addpseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request...
CVE-2017-14496
Integer underflow in the addpseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request...
CVE-2017-14496
Integer underflow in the addpseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request...
CVE-2017-14496
CVE-2017-14496: dnsmasq contains an integer underflow in the EDNS0 add_pseudoheader handling when --add-mac, --add-cpe-id, or --add-subnet is used, allowing a denial of service via crafted DNS requests. Public advisories (CentOS/RH, Arch Linux, AWS ALAS) and Arista note fixes, with upgrades to dn...
UBUNTU-CVE-2017-14496
Integer underflow in the addpseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request...
Dnsmasq Integer Underflow
Sources: https://raw.githubusercontent.com/google/security-research-pocs/master/vulnerabilities/dnsmasq/CVE-2017-14496.py https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html dnsmasq is vulnerable only if one of the following option is specified: --add-mac, --add-cpe-id ...