Denial Of Service (DoS)

dnsmasq is vulnerable to denial of serviceDoS attacks. A remote user could send specially crafted DNS packets to trigger an integer underflow and subsequent buffer over-read error in the EDNS0 code and cause the target service to crash. This issue only affects configurations using one of the...

EulerOS Virtualization for ARM 64 3.0.1.0 : dnsmasq (EulerOS-SA-2019-1380)

According to the versions of the dnsmasq packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - An information leak was found in dnsmasq in the DHCPv6 relay code. An attacker on the local network could send crafte...

DNS Flag Day & Akamai

Written by Jon Reed & Barry Greene DNS Flag Day is an industry event that promotes the adoption of the most up-to-date DNS features and ensures that non-standards-compliant servers don't negatively impact the global performance of the Internet. The 2019 DNS Flag Day will remove a number of...

EulerOS 2.0 SP2 : dnsmasq (EulerOS-SA-2018-1285)

According to the versions of the dnsmasq packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory...

Null pointer dereference

An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to th...

CVE-2016-7069

An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to th...

CVE-2016-7069

An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to th...

DEBIAN-CVE-2016-7069

An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to th...

CVE-2016-7069

An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to th...

CVE-2016-7069

CVE-2016-7069 affects dnsdist up to version 1.2.0, where parsing responses from a backend and removing an EDNS0 OPT record (when EDNS Client Subnet is enabled) could trigger undefined behavior on 32-bit systems, causing a crash. Technical details across connected sources confirm the vulnerability...

CVE-2016-7069

An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to th...

SUSE SLES12 Security Update : glibc (SUSE-SU-2018:2185-1)

This update for glibc fixes the following issues: Security issues fixed : - CVE-2017-15804: Fix buffer overflow during unescaping of user names in the glob function in glob.c bsc1064580. - CVE-2017-15670: Fix buffer overflow in glob with GLOBTILDE bsc1064583. - CVE-2017-15671: Fix memory leak in...

SUSE-SU-2018:2185-1 Security update for glibc

This update for glibc fixes the following issues: Security issues fixed: - CVE-2017-15804: Fix buffer overflow during unescaping of user names in the glob function in glob.c bsc1064580. - CVE-2017-15670: Fix buffer overflow in glob with GLOBTILDE bsc1064583. - CVE-2017-15671: Fix memory leak in...

Updated dnsmasq packages fix security vulnerabilities

An audit by mozilla security found several vulnerability and potential vulnerability in dnsmasq: - Uninitialized buffer leads to memory leakage - Allocated memory is not cleared - Unchecked return value can lead to NULL pointer dereference - Hardcoded values in fscanf format strings with...

DNSmasq Denial of Service Vulnerability (CNVD-2017-29273)

DNSmasq is a small and handy tool for configuring DNS and DHCP for small networks that provides DNS functionality and optional DHCP functionality. A denial of service vulnerability in DNSmasq 2.77 and prior versions allows remote attackers to crash the target service by sending specially crafted...

CVE-2017-14496

An integer underflow flaw leading to a buffer over-read was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet...

Critical: dnsmasq

Issue Overview: Information leak in the DHCPv6 relay code An information leak was found in dnsmasq in the DHCPv6 relay code. An attacker on the local network could send crafted DHCPv6 packets to dnsmasq causing it to forward the contents of process memory, potentially leaking sensitive data...

PowerDNS Recursor 3.x < 3.0.1 EDNS0 DoS

According to its self-reported version number, the version of the PowerDNS Recursor listening on the remote host is version 3.x prior to 3.0.1. It is, therefore, affected by a denial of service vulnerability due to improper processing of Extension Mechanisms for DNS EDNS0 packets. A remote attack...

Wireshark DNS Resolver Denial of Service Vulnerability

Wireshark is the most popular network protocol parser. In Wireshark version 1.12.x prior to 1.12.9, the function dissectdnsanswer within epan/dissectors/packet-dns.c in the DNS parser incorrectly handles the EDNS0 Client Subnet option in a constructed packet, which can be exploited by a remote...

CVE-2015-8719

The dissectdnsanswer function in epan/dissectors/packet-dns.c in the DNS dissector in Wireshark 1.12.x before 1.12.9 mishandles the EDNS0 Client Subnet option, which allows remote attackers to cause a denial of service application crash via a crafted packet...