CVE-2020-8616

CVE-2020-8616 (ISC BIND): A denial-of-service exists due to failure to limit the number of fetches when processing referrals. A remote attacker can craft referrals to cause a recursing server to perform a very large number of fetches, degrading performance and enabling potential reflection attack...

CVE-2020-8616

A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral...

CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

DEBIAN-CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

Code injection

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

UBUNTU-CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

UBUNTU-CVE-2020-10995

PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted rep...

CVE-2020-10995

PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted rep...

Web Giants Scrambled to Head Off a Dangerous DDoS Technique

Firms like Google and Cloudflare raced to prevent an amplification attack that threatened to take down large portions of the internet with just a few hundred devices...

Windows DNS Server Denial of Service Vulnerability

Microsoft is aware of a vulnerability involving packet amplification that affects Windows DNS servers. An attacker who successfully exploited this vulnerability could cause the DNS Server service to become nonresponsive. To exploit this vulnerability an attacker would need to have access to at...

CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

CVE-2020-12667

Knot Resolver (the Knot-resolver project) is affected by CVE-2020-12667. The vulnerability allows traffic amplification via a crafted DNS answer from an attacker-controlled server, triggered by random subdomains in the NSDNAME field of NS records (NXNSAttack). Affected versions are Knot Resolver ...

KLA11783 Microsoft Advisory for Windows DNS servers

Microsoft is aware of a vulnerability involving packet amplification that affects Windows DNS servers. An attacker who successfully exploited this vulnerability could cause the DNS Server service to become nonresponsive. To exploit this vulnerability an attacker would need to have access to at...

CVE-2020-8616: NXNSAttack: Recursive DNS Inefficiencies and Vulnerabilities

A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral...

CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

PT-2020-13194 · Cz.Nic +3 · Knot Resolver +3

Name of the Vulnerable Software and Affected Versions: Knot Resolver versions prior to 5.1.1 Description: The issue allows traffic amplification via a crafted DNS answer from an attacker-controlled server, also known as an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME ...

CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

CVE-2020-12667

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...