openSUSE 16: openssh / openssh-askpass-gnome / openssh-cavs / openssh-clients / etc (openSUSE-SU-2026:21477-1)

critical Nessus Plugin ID 331565

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-2026:21477-1 advisory.

- CVE-2026-59995: sftp: location of downloaded files not properly constrained when `sftp server:/path .` is used with an attacker-controlled server (bsc#1271044).
- CVE-2026-59996: scp: file placed in the parent directory of an intended target directory when copy occurs between two remote destinations (bsc#1271046).
- CVE-2026-59997: sshd: `internal-sftp` command lines are silently truncated after the 9th argument (bsc#1271048).
- CVE-2026-59998: sshd: undocumented security-relevant `GSSAPIStrictAcceptorCheck` behavior in Windows Active Directory is not documented (bsc#1271049).
- CVE-2026-59999: sshd: `DisableForwarding=yes` does not override `PermitTunnel=yes` (bsc#1271052).
- CVE-2026-60000: sshd: pre-authentication denial of service when GSSAPIAuthentication is enabled (bsc#1271053).
- CVE-2026-60001: sshd: minimum authentication delay is not honored (bsc#1271054).
- CVE-2026-60002: ssh: client-side use-after-free when a server changes its host key during a key reexchange (bsc#1271055).

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.

Plugin Details

Severity: Critical

ID: 331565

File Name: openSUSE-2026-21477-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 8/1/2026

Updated: 8/1/2026

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: 4.5

Percentile: 57.61

CVSS v2

Risk Factor: High

Base Score: 9.7

Temporal Score: 7.2

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

CVSS Score Source: CVE-2026-60002

CVSS v3

Risk Factor: Critical

Base Score: 9.4

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:openssh-askpass-gnome, p-cpe:/a:novell:opensuse:openssh-cavs, p-cpe:/a:novell:opensuse:openssh-clients, p-cpe:/a:novell:opensuse:openssh-common, p-cpe:/a:novell:opensuse:openssh-helpers, p-cpe:/a:novell:opensuse:openssh-server-config-rootlogin, p-cpe:/a:novell:opensuse:openssh-server, p-cpe:/a:novell:opensuse:openssh

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: 7/29/2026

Vulnerability Publication Date: 7/8/2026

Reference Information

CVE: CVE-2026-59995, CVE-2026-59996, CVE-2026-59997, CVE-2026-59998, CVE-2026-59999, CVE-2026-60000, CVE-2026-60001, CVE-2026-60002

IAVA: 2026-A-0691

Detections

Analytics