UBUNTU-CVE-2021-25214

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-25214

    UBUNTU-CVE-2021-25214

    Published: 28 Apr 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-25214

    Summary:

    Details: In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.

    References: https://ubuntu.com/security/CVE-2021-25214, https://kb.isc.org/docs/cve-2021-25214, https://ubuntu.com/security/notices/USN-4929-1, https://www.cve.org/CVERecord?id=CVE-2021-25214, https://ubuntu.com/security/notices/USN-7739-1

    Affected packages

    Package

    Name: bind9

    Purl: pkg:deb/ubuntu/bind9@1:9.9.5.dfsg-3ubuntu0.19+esm13?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:9.9.5.dfsg-3ubuntu0.19+esm13

    Affected versions

    1:9.9.3.dfsg.P2-4ubuntu1
    1:9.9.3.dfsg.P2-4ubuntu2
    1:9.9.3.dfsg.P2-4ubuntu3
    1:9.9.5.dfsg-2
    1:9.9.5.dfsg-3
    1:9.9.5.dfsg-3ubuntu0.1
    1:9.9.5.dfsg-3ubuntu0.2
    1:9.9.5.dfsg-3ubuntu0.3
    1:9.9.5.dfsg-3ubuntu0.4
    1:9.9.5.dfsg-3ubuntu0.5
    1:9.9.5.dfsg-3ubuntu0.6
    1:9.9.5.dfsg-3ubuntu0.7
    1:9.9.5.dfsg-3ubuntu0.8
    1:9.9.5.dfsg-3ubuntu0.9
    1:9.9.5.dfsg-3ubuntu0.10
    1:9.9.5.dfsg-3ubuntu0.11
    1:9.9.5.dfsg-3ubuntu0.12
    1:9.9.5.dfsg-3ubuntu0.13
    1:9.9.5.dfsg-3ubuntu0.14
    1:9.9.5.dfsg-3ubuntu0.15
    1:9.9.5.dfsg-3ubuntu0.16
    1:9.9.5.dfsg-3ubuntu0.17
    1:9.9.5.dfsg-3ubuntu0.18
    1:9.9.5.dfsg-3ubuntu0.19
    1:9.9.5.dfsg-3ubuntu0.19+esm1
    1:9.9.5.dfsg-3ubuntu0.19+esm2
    1:9.9.5.dfsg-3ubuntu0.19+esm3
    1:9.9.5.dfsg-3ubuntu0.19+esm4
    1:9.9.5.dfsg-3ubuntu0.19+esm5
    1:9.9.5.dfsg-3ubuntu0.19+esm6
    1:9.9.5.dfsg-3ubuntu0.19+esm7
    1:9.9.5.dfsg-3ubuntu0.19+esm9
    1:9.9.5.dfsg-3ubuntu0.19+esm10
    1:9.9.5.dfsg-3ubuntu0.19+esm11
    1:9.9.5.dfsg-3ubuntu0.19+esm12

    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
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