haproxy: Infinite recursion via crafted packet allows stack exhaustion and denial of service

An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion...

Protecting your Domain Names: Taking the First Steps

Everyone and everything on the Internet depends on the Domain Name System DNS being functional. The DNS has been a common vector for attacks in recent years, and 2019 seems to be no different. Many of these attacks have goals far more sinister than simply taking a company offline or defacing a...

Protecting your Domain Names: Taking the First Steps

Everyone and everything on the Internet depends on the Domain Name System DNS being functional. The DNS has been a common vector for attacks in recent years, and 2019 seems to be no different. Many of these attacks have goals far more sinister than simply taking a company offline or defacing a...

CVE-2019-7390

An issue was discovered in /bin/goahead on D-Link DIR-823G devices with firmware 1.02B03. There is incorrect access control allowing remote attackers to hijack the DNS service configuration of all clients in the WLAN, without authentication, via the SetWanSettings HNAP API...

DHS Orders U.S. Federal Agencies to Audit DNS Security for Their Domains

The U.S. Department of Homeland Security DHS has today issued an "emergency directive" to all federal agencies ordering IT staff to audit DNS records for their respective website domains, or other agency-managed domains, within next 10 business days. The emergency security alert came in the wake ...

ALPINE-CVE-2018-5740

"deny-answer-aliases" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, ...

DEBIAN-CVE-2017-3136

A query with a specific set of characteristics could cause a server using DNS64 to encounter an assertion failure and terminate. An attacker could deliberately construct a query, enabling denial-of-service against a server if it was configured to use the DNS64 feature and other preconditions were...

DEBIAN-CVE-2017-3142

An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name may be able to circumvent TSIG authentication of AXFR requests via a carefully constructed request packet. A server that relies solely on TSIG keys for protection wit...

ALPINE-CVE-2017-3136

A query with a specific set of characteristics could cause a server using DNS64 to encounter an assertion failure and terminate. An attacker could deliberately construct a query, enabling denial-of-service against a server if it was configured to use the DNS64 feature and other preconditions were...

ALPINE-CVE-2017-3142

An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name may be able to circumvent TSIG authentication of AXFR requests via a carefully constructed request packet. A server that relies solely on TSIG keys for protection wit...

DEBIAN-CVE-2017-3137

Mistaken assumptions about the ordering of records in the answer section of a response containing CNAME or DNAME resource records could lead to a situation in which named would exit with an assertion failure when processing a response in which records occurred in an unusual order. Affects BIND...

UBUNTU-CVE-2018-5741

To provide fine-grained controls over the ability to use Dynamic DNS DDNS to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the types of updates that can be performed by a client, depending on the key used when sending the update...

ALPINE-CVE-2017-3143

An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name for the zone and service being targeted may be able to manipulate BIND into accepting an unauthorized dynamic update. Affects BIND 9.4.0-9.8.8, 9.9.0-9.9.10-P1,...

Google DNS Service (8.8.8.8) Now Supports DNS-over-TLS Security

Almost every activity on the Internet starts with a DNS query, a key function of the Internet that works as an Internet's directory where your device looks up for the server IP addresses after you enter a human-readable web address e.g., thehackernews.com. Since DNS queries are sent in clear text...

The vulnerability of the DNS Global Blocklist mechanism in the Microsoft Windows operating system allows a hacker to redirect traffic to a malicious destination.

The vulnerability of the DNS Global Blocklist mechanism in the Microsoft Windows operating system is related to access control errors. Exploiting this vulnerability allows a malicious actor to redirect traffic to a malicious destination remotely...

DEBIAN-CVE-2018-20103

An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion...

DEBIAN-CVE-2018-20102

An out-of-bounds read in dnsvalidatednsresponse in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing...

UBUNTU-CVE-2018-20103

An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion...

The vulnerability of the BIND DNS server lies in the improper release of resources during the processing of recursive requests to the DNS server. This allows a hacker to cause a service failure.

The vulnerability of the BIND DNS server is related to the improper release of resources during the processing of recursive requests to the DNS server when BIND operates as a DNSSEC-compliant resolver. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of the CUPS printing server lies in its ability to execute arbitrary IPP commands, allowing users to compromise the integrity of data.

The vulnerability of the CUPS printing server relates to the ability to execute arbitrary IPP commands. Exploiting this vulnerability allows a malicious actor to compromise data integrity by sending POST requests to the CUPS service along with reattached DNS information...