USN-4374-1: Unbound vulnerabilities

Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Unbound incorrectly handled certain queries. A remote attacker could use this issue to perform an amplification attack directed at a target. CVE-2020-12662 It was discovered that Unbound incorrectly handled certain malformed answers....

NewStart CGSL CORE 5.04 / MAIN 5.04 : chrony Multiple Vulnerabilities (NS-SA-2020-0027)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has chrony packages installed that are affected by multiple vulnerabilities: - Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service crash via a crafted 1...

MGASA-2020-0224 Updated unbound packages fix security vulnerabilities

Updated unbound packages fix security vulnerabilities: Unbound can be tricked into amplifying an incoming query into a large number of queries directed to a target CVE-2020-12662. Malformed answers from upstream name servers can be used to make Unbound unresponsive CVE-2020-12663...

MGASA-2020-0223 Updated pdns-recursor packages fix security vulnerabilities

Updated pdns-recursor packages fix security vulnerabilities: 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 reply by an authoritative name server to amplify the...

Debian DSA-4691-1 : pdns-recursor - security update

Two vulnerabilities have been discovered in PDNS Recursor, a resolving name server; a traffic amplification attack against third-party authoritative name servers NXNSAttack and insufficient validation of NXDOMAIN responses lacking an SOA. The version of pdns-recursor in the oldstable distribution...

[SECURITY] [DSA 4691-1] pdns-recursor security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4691-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 21, 2020 https://www.debian.org/security/faq -...

Amazon Linux 2 : bind (ALAS-2020-1426)

The version of bind installed on the remote host is prior to 9.11.4-9.P2. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2020-1426 advisory. An assertion failure was found in BIND, which checks the validity of messages containing TSIG resource records. This flaw...

Vulnerabilities fixed in BIND

BIND has fixed several vulnerabilities that could allow a malicious potentially capable of causing a denial-of-service DoS cause. A DoS attack exploiting the vulnerability with attribute CVE-2020-8617, targets DNS clients. The vulnerability with attribute CVE-2020-8616 involves a new method for...

[ASA-202005-14] unbound: denial of service

Arch Linux Security Advisory ASA-202005-14 ========================================== Severity: High Date : 2020-05-20 CVE-ID : CVE-2020-12662 CVE-2020-12663 Package : unbound Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-1164 Summary ======= The package unbound...

Debian DSA-4689-1 : bind9 - security update

Several vulnerabilities were discovered in BIND, a DNS server implementation. - CVE-2019-6477 It was discovered that TCP-pipelined queries can bypass tcp-client limits resulting in denial of service. - CVE-2020-8616 It was discovered that BIND does not sufficiently limit the number of fetches...

CVE-2020-12662

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

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...

DEBIAN-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...

Design/Logic Flaw

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...

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...

CVE-2020-10995

PowerDNS Recursor (PowerDNS Recursor 4.1.0–4.3.0) is affected by CVE-2020-10995. A DNS-protocol issue allows an attacker to use recursive resolvers to amplify traffic toward third-party authoritative name servers, potentially degrading service. Mitigations exist in PowerDNS Recursor 4.1.16, 4.2.2...

DEBIAN-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...