CVE Vulnerabilities

CVE-2019-25040

Loop with Unreachable Exit Condition ('Infinite Loop')

Published: Apr 27, 2021 | Modified: Aug 05, 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 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM

Unbound before 1.9.5 allows an infinite loop via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited

Weakness

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

Affected Software

Name Vendor Start Version End Version
Unbound Nlnetlabs * 1.9.5 (excluding)
Red Hat Enterprise Linux 8 RedHat unbound-0:1.7.3-15.el8 *
Red Hat Enterprise Linux 8.2 Extended Update Support RedHat unbound-0:1.7.3-12.el8_2 *
Unbound Ubuntu bionic *
Unbound Ubuntu focal *
Unbound Ubuntu trusty *
Unbound Ubuntu upstream *
Unbound Ubuntu xenial *

References