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CVE-2018-5743

Status Candidate

Overview

By design, BIND is intended to limit the number of TCP clients that can be connected at any given time. The number of allowed connections is a tunable parameter which, if unset, defaults to a conservative value for most servers. Unfortunately, the code which was intended to limit the number of simultaneous connections contained an error which could be exploited to grow the number of simultaneous connections beyond this limit. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.6, 9.12.0 -> 9.12.4, 9.14.0. BIND 9 Supported Preview Edition versions 9.9.3-S1 -> 9.11.5-S3, and 9.11.5-S5. Versions 9.13.0 -> 9.13.7 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5743.

Related Files

Red Hat Security Advisory 2019-2977-01
Posted Oct 8, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2977-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly. A rate limiting issue has been addressed.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2018-5743
MD5 | 2fda842733ec1d60f3260c0abcf8b03b
Red Hat Security Advisory 2019-2698-01
Posted Sep 10, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2698-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2018-5743
MD5 | 9a6f97103a53b8499e07c89cdddd4e14
Red Hat Security Advisory 2019-1492-01
Posted Jun 17, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1492-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly. A connection rate limiting control vulnerability has been addressed.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2018-5743
MD5 | 564547564a1f5a751b278132091f7c4f
Red Hat Security Advisory 2019-1294-01
Posted May 30, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1294-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly. A rate limiting control is bind has been addressed.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2018-5743
MD5 | 064be2417b148e87315987cbcb186c4c
Red Hat Security Advisory 2019-1145-01
Posted May 13, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1145-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly. Issues addressed include an ineffective connection limitation vulnerability.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2018-5743
MD5 | 615d028f6712150042231a2d4de7af70
Debian Security Advisory 4440-1
Posted May 9, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4440-1 - Multiple vulnerabilities were found in the BIND DNS server.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2018-5743, CVE-2018-5745, CVE-2019-6465
MD5 | 1b177a9a6255e92e1a97bb618279d777
Ubuntu Security Notice USN-3956-2
Posted May 9, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3956-2 - USN-3956-1 fixed a vulnerability in Bind. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. It was discovered that Bind incorrectly handled limiting the number of simultaneous TCP clients. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, tcp
systems | linux, ubuntu
advisories | CVE-2018-5743
MD5 | 6773ccc1f5924ff610690f419af7be61
Slackware Security Advisory - bind Updates
Posted Apr 29, 2019
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New bind packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix a security issue.

tags | advisory
systems | linux, slackware
advisories | CVE-2018-5743
MD5 | 67752587c136df2459d1e2ab9f2e8f29
Ubuntu Security Notice USN-3956-1
Posted Apr 25, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3956-1 - It was discovered that Bind incorrectly handled limiting the number of simultaneous TCP clients. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service.

tags | advisory, remote, denial of service, tcp
systems | linux, ubuntu
advisories | CVE-2018-5743
MD5 | 644d4f2cd8e09bd97445ba39cdb2b135
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