Detections
Analytics
CBL Mariner 2.0 Security Update: c-ares / pgbouncer (CVE-2021-3672)
medium Nessus Plugin ID 235271
Synopsis
The remote CBL Mariner host is missing one or more security updates.Description
The version of c-ares / pgbouncer installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2021-3672 advisory.- A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability. (CVE-2021-3672)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 235271
File Name: mariner_CVE-2021-3672.nasl
Version: 1.1
Type: local
Family: MarinerOS Local Security Checks
Published: 5/6/2025
Updated: 5/6/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.2
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2021-3672
CVSS v3
Risk Factor: Medium
Base Score: 5.6
Temporal Score: 5.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:microsoft:cbl-mariner:c-ares, p-cpe:/a:microsoft:cbl-mariner:c-ares-devel, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:pgbouncer, p-cpe:/a:microsoft:cbl-mariner:c-ares-debuginfo
Required KB Items: Host/local_checks_enabled, Host/CBLMariner/release, Host/CBLMariner/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 5/1/2025
Vulnerability Publication Date: 8/12/2021
Reference Information
CVE: CVE-2021-3672