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openSUSE 16 Security Update : wicked (openSUSE-SU-2026:21669-1)

medium Nessus Plugin ID 341543

Synopsis

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

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21669-1 advisory.

 Changes in wicked:

 - Fix two OOB reads in ni_capture_inspect_udp_header and improve:
 - Reject packets with ip_len < ihl to avoid a size_t underflow of the UDP length, which the checksum truncates to uint16_t (bsc#1274627, CVE-2026-71401).
 - Set payload_len to the remaining payload, not ip_len, which over-read the DHCP option walker by ihl + 8 bytes past the buffer (bsc#1274627, CVE-2026-71402).
 - Avoid checksumming packets that fail the length/protocol checks and tidy up the debug messages (bsc#1274627).
 - Fix underflow check in ni_dhcp4_option_next to handle option code and length separately as the END and PAD options don't have length (bsc#1274627).

 Thanks to Daniel Birtwhistle for discovering and reporting the issues.

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 wicked, wicked-nbft and / or wicked-service packages.

See Also

https://bugzilla.suse.com/1274627

https://www.suse.com/security/cve/CVE-2026-71401

https://www.suse.com/security/cve/CVE-2026-71402

Plugin Details

Severity: Medium

ID: 341543

File Name: openSUSE-2026-21669-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/29/2026

Updated: 8/29/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.49

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-71402

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:wicked-nbft, p-cpe:/a:novell:opensuse:wicked-service, p-cpe:/a:novell:opensuse:wicked

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: 8/27/2026

Vulnerability Publication Date: 8/27/2026

Reference Information

CVE: CVE-2026-71401, CVE-2026-71402