PT-2019-4853 · Isc+6 · Bind+6

Published 2019-06-19 · Updated 2024-06-15 · CVE-2019-6471

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions BIND versions 9.11.0 through 9.11.7 BIND versions 9.12.0 through 9.12.4-P1 BIND versions 9.14.0 through 9.14.2 BIND 9.13 development branch (all releases) BIND 9.15 development branch version 9.15.0 BIND Supported Preview Edition versions 9.11.3-S1 through 9.11.7-S1

Description A race condition may occur when discarding malformed packets, resulting in BIND exiting due to a REQUIRE assertion failure in dispatch.c. This issue can lead to a denial of service, allowing a remote attacker to cause the service to terminate. The vulnerability is related to the handling of incoming packets and can be triggered by specially crafted packets.

Recommendations For BIND versions 9.11.0 through 9.11.7, update to version 9.11.9 or later. For BIND versions 9.12.0 through 9.12.4-P1, update to a version later than 9.12.4-P1. For BIND versions 9.14.0 through 9.14.2, update to version 9.14.4 or later. For the BIND 9.13 development branch, update to a version that includes the fix for this issue. For the BIND 9.15 development branch, update to version 9.15.2 or later. For BIND Supported Preview Edition versions 9.11.3-S1 through 9.11.7-S1, update to a version later than 9.11.7-S1.

Fix

DoS

Race Condition

Assertion Failure

Weakness Enumeration

CWE-362

CWE-617

Related Identifiers

ALT-PU-2019-2101

ALT-PU-2019-3186

BDU:2020-01437

CESA-2019_1714

CVE-2019-6471

MGASA-2019-0299

OPENSUSE-SU-2019:2263-1

OPENSUSE-SU-2019:2265-1

OPENSUSE-SU-2019_2263-1

OPENSUSE-SU-2019_2265-1

OPENSUSE-SU-2024:10650-1

RHSA-2019:1714

RHSA-2019_1714

SUSE-SU-2019:2502-1

SUSE-SU-2019:2550-1

SUSE-SU-2019_2550-1

USN-4026-1

Affected Products

Alt Linux

Bind

Bind Server

Centos

Red Hat

Suse

Ubuntu

References · 86

• https://osv.dev/vulnerability/UBUNTU-CVE-2019-6471 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-6471 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-6471 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-6471 · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2019-6471 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-6471 · Security Note
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=71831011 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:2263-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4026-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6471 · Security Note
• https://osv.dev/vulnerability/MGASA-2019-0299 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6477 · Security Note
• https://errata.altlinux.org/ALT-PU-2019-3186 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-6471 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0299.html · Security Note