RLSA-2021:1989

    Dashboard / Vulnerabilities / RLSA-2021:1989

    RLSA-2021:1989

    Published: 18 May 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-25215

    Summary: Important: bind security update

    Details: The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly. Security Fix(es): * bind: An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself (CVE-2021-25215) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    References: https://errata.rockylinux.org/RLSA-2021:1989, https://bugzilla.redhat.com/show_bug.cgi?id=1953857

    Affected packages

    Package

    Name: bind

    Purl: pkg:rpm/rocky-linux/bind?distro=rocky-linux-8-4-legacy&epoch=2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:9.11.26-4.el8_4

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RLSA-2021:1989 | CVE-DB