ISC BIND Multiple DoS Vulnerabilities (CVE-2020-8622, CVE-2020-8623) - Linux

ISC BIND is prone to multiple denial of service vulnerabilities. Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free...

Vulnerability Spotlight: Internet Systems Consortium BIND server DoS

Emanuel Almeida of Cisco Systems discovered this vulnerability. Blog by Jon Munshaw. The Internet Systems Consortium’s BIND server contains a denial-of-service vulnerability that exists when processing TCP traffic through the libuv library. An attacker can exploit this vulnerability by flooding t...

CVE-2020-8622

In BIND 9.0.0 - 9.11.21, 9.12.0 - 9.16.5, 9.17.0 - 9.17.3, also affects 9.9.3-S1 - 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that...

UBUNTU-CVE-2020-8622

In BIND 9.0.0 - 9.11.21, 9.12.0 - 9.16.5, 9.17.0 - 9.17.3, also affects 9.9.3-S1 - 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that...

CVE-2020-8620

In BIND 9.15.6 - 9.16.5, 9.17.0 - 9.17.3, An attacker who can establish a TCP connection with the server and send data on that connection can exploit this to trigger the assertion failure, causing the server to exit...

F5 Networks BIG-IP : BIND vulnerability (K19807532)

"The asterisk character '' is allowed in DNS zone files, where it is most commonly present as a wildcard at a terminal node of the Domain Name System graph. However, the RFCs do not require and BIND does not enforce that an asterisk character be present only at a terminal node. A problem can occu...

CVE-2020-8621

In BIND 9.14.0 - 9.16.5, 9.17.0 - 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected...

UBUNTU-CVE-2020-8621

In BIND 9.14.0 - 9.16.5, 9.17.0 - 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected...

CVE-2020-8623

In BIND 9.10.0 - 9.11.21, 9.12.0 - 9.16.5, 9.17.0 - 9.17.3, also affects 9.10.5-S1 - 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: be running BIND tha...

CVE-2020-8624

In BIND 9.9.12 - 9.9.13, 9.10.7 - 9.10.8, 9.11.3 - 9.11.21, 9.12.1 - 9.16.5, 9.17.0 - 9.17.3, also affects 9.9.12-S1 - 9.9.13-S1, 9.11.3-S1 - 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker who has been granted privileges to change a specific subset of the zone's content could abu...

Internet Systems Consortium's BIND TCP Receive Buffer Length Assertion Check Denial of Service Vulnerability

Summary An assertion failure exists within the Internet Systems Consortium’s BIND server versions 9.16.1 through 9.17.1 when processing TCP traffic via the libuv library. Due to a length specified within a callback for the library, flooding the server’s TCP port used for larger DNS requests AXFR...

UBUNTU-CVE-2020-8620

In BIND 9.15.6 - 9.16.5, 9.17.0 - 9.17.3, An attacker who can establish a TCP connection with the server and send data on that connection can exploit this to trigger the assertion failure, causing the server to exit...

The vulnerability of the BIND DNS server, related to uncontrolled resource consumption, allows a hacker to cause a service failure.

The vulnerability of the BIND DNS server is related to uncontrolled resource consumption. Exploiting this vulnerability can allow a malicious actor, operating remotely, to cause service failures...

Important: Red Hat Security Advisory: bind security update

An update for bind is now available for Red Hat Enterprise Linux 7.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for ea...

bind: BIND does not sufficiently limit the number of fetches performed when processing referrals

A flaw was found in BIND, where it does not sufficiently limit the number of fetches that can be performed while processing a referral response. This flaw allows an attacker to cause a denial of service attack. The attacker can also exploit this behavior to use the recursing server as a reflector...

bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c

An assertion failure was found in BIND, which checks the validity of messages containing TSIG resource records. This flaw allows an attacker that knows or successfully guesses the name of the TSIG key used by the server to use a specially-crafted message, potentially causing a BIND server to reac...

Important: Red Hat Security Advisory: bind security update

An update for bind is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support, Red Hat Enterprise Linux 7.3 Telco Extended Update Support, and Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact ...

bind: BIND does not sufficiently limit the number of fetches performed when processing referrals

A flaw was found in BIND, where it does not sufficiently limit the number of fetches that can be performed while processing a referral response. This flaw allows an attacker to cause a denial of service attack. The attacker can also exploit this behavior to use the recursing server as a reflector...

bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c

An assertion failure was found in BIND, which checks the validity of messages containing TSIG resource records. This flaw allows an attacker that knows or successfully guesses the name of the TSIG key used by the server to use a specially-crafted message, potentially causing a BIND server to reac...

bind: BIND does not sufficiently limit the number of fetches performed when processing referrals

A flaw was found in BIND, where it does not sufficiently limit the number of fetches that can be performed while processing a referral response. This flaw allows an attacker to cause a denial of service attack. The attacker can also exploit this behavior to use the recursing server as a reflector...