Detections
Analytics

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : unbound (SUSE-SU-2024:1991-1)

medium Nessus Plugin ID 200411

Language:

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1991-1 advisory.

 unbound was updated to 1.20.0:

 * A lot of bugfixes and added features.
 For a complete list take a look at the changelog located at:
 /usr/share/doc/packages/unbound/Changelog or https://www.nlnetlabs.nl/projects/unbound/download/

 Some Noteworthy Changes:

 * Removed DLV. The DLV has been decommisioned since unbound 1.5.4 and has been advised to stop using it since. The use of dlv options displays a warning.
 * Remove EDNS lame procedure, do not re-query without EDNS after timeout.
 * Add DNS over HTTPS
 * libunbound has been upgraded to major version 8

 Security Fixes:
 * CVE-2023-50387: DNSSEC verification complexity can be exploited to exhaust CPU resources and stall DNS resolvers. [bsc#1219823]
 * CVE-2023-50868: NSEC3 closest encloser proof can exhaust CPU.
 [bsc#1219826]
 * CVE-2022-30698: Novel 'ghost domain names' attack by introducing subdomain delegations. [bsc#1202033]
 * CVE-2022-30699: Novel 'ghost domain names' attack by updating almost expired delegation information. [bsc#1202031]
 * CVE-2022-3204: NRDelegation attack leads to uncontrolled resource consumption (Non-Responsive Delegation Attack). [bsc#1203643]

 Packaging Changes:

 * Use prefixes instead of sudo in unbound.service
 * Remove no longer necessary BuildRequires: libfstrm-devel and libprotobuf-c-devel

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1202031

https://bugzilla.suse.com/1202033

https://bugzilla.suse.com/1203643

https://bugzilla.suse.com/1219823

https://bugzilla.suse.com/1219826

http://www.nessus.org/u?53fc77ef

https://www.suse.com/security/cve/CVE-2022-30698

https://www.suse.com/security/cve/CVE-2022-30699

https://www.suse.com/security/cve/CVE-2022-3204

https://www.suse.com/security/cve/CVE-2023-50387

https://www.suse.com/security/cve/CVE-2023-50868

Plugin Details

Severity: Medium

ID: 200411

File Name: suse_SU-2024-1991-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 6/12/2024

Updated: 6/12/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N

CVSS Score Source: CVE-2022-30699

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:unbound-python, p-cpe:/a:novell:suse_linux:unbound-anchor, p-cpe:/a:novell:suse_linux:unbound, p-cpe:/a:novell:suse_linux:libunbound8, p-cpe:/a:novell:suse_linux:unbound-devel, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/11/2024

Vulnerability Publication Date: 8/1/2022

Reference Information

CVE: CVE-2022-30698, CVE-2022-30699, CVE-2022-3204, CVE-2023-50387, CVE-2023-50868

SuSE: SUSE-SU-2024:1991-1