Several vulnerabilities fixed in BIND

Several vulnerabilities have been fixed in BIND. A malicious person can remotely exploit the vulnerabilities to cause the BIND process to crash and thus cause a denial-of-service on DNS traffic cause. ISC has released updates to fix the vulnerabilities in BIND 9.11.22, 9.16.6 and 9.17.4. For more...

CVE-2020-8623: Reachable Assertion

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: Improper Privilege Management

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...

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-2020-8624

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...

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-2020-8621

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-2020-8622

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-2020-8622

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...

PT-2020-5766

Name of the Vulnerable Software and Affected Versions: BIND 9 versions 9.0.0 through 9.11.21 BIND 9 versions 9.12.0 through 9.16.5 BIND 9 versions 9.17.0 through 9.17.3 BIND 9 Supported Preview Edition versions 9.9.3-S1 through 9.11.21-S1 Description: The issue is related to an assertion failure...

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...

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...

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...

PT-2020-6022

Name of the Vulnerable Software and Affected Versions BIND versions 9.15.6 through 9.16.5 BIND versions 9.17.0 through 9.17.3 Description The issue is related to the libuv library in the BIND DNS server, which can be exploited by an attacker who can establish a TCP connection with the server and...

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...

PT-2020-6021

Name of the Vulnerable Software and Affected Versions BIND versions 9.14.0 through 9.16.5 BIND versions 9.17.0 through 9.17.3 Description The issue arises when a server is configured with both QNAME minimization and 'forward first'. An attacker who can send queries to the server may be able to...

PT-2020-5739

Name of the Vulnerable Software and Affected Versions: BIND versions 9.10.0 through 9.11.21 BIND versions 9.12.0 through 9.16.5 BIND versions 9.17.0 through 9.17.3 BIND 9 Supported Preview Edition versions 9.10.5-S1 through 9.11.21-S1 Description: The issue allows an attacker to trigger a crash...

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...

BIND DNS DoS

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...