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CVE Vulnerabilities

CVE-2020-12663

Loop with Unreachable Exit Condition ('Infinite Loop')

Published: May 19, 2020 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-12663
CWEhttps://cwe.mitre.org/data/definitions/835.html

Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.

Weakness

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

Affected Software

NameVendorStart VersionEnd Version
UnboundNlnetlabs*1.10.1 (excluding)
Red Hat Enterprise Linux 6RedHatunbound-0:1.4.20-29.el6_10.1*
Red Hat Enterprise Linux 7RedHatunbound-0:1.6.6-4.el7_8*
Red Hat Enterprise Linux 7.7 Extended Update SupportRedHatunbound-0:1.6.6-2.el7_7*
Red Hat Enterprise Linux 8RedHatunbound-0:1.7.3-11.el8_2*
Red Hat Enterprise Linux 8.0 Update Services for SAP SolutionsRedHatunbound-0:1.7.3-9.el8_0*
Red Hat Enterprise Linux 8.1 Extended Update SupportRedHatunbound-0:1.7.3-9.el8_1*
UnboundUbuntubionic*
UnboundUbuntueoan*
UnboundUbuntuesm-infra-legacy/trusty*
UnboundUbuntuesm-infra/bionic*
UnboundUbuntuesm-infra/focal*
UnboundUbuntuesm-infra/xenial*
UnboundUbuntufocal*
UnboundUbuntutrusty*
UnboundUbuntutrusty/esm*
UnboundUbuntuupstream*
UnboundUbuntuxenial*

References

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