Medium: libssh

Issue Overview: NULL Pointer Dereference vulnerability in the session ID calculation logic of the libssh library. The flaw arises from improper handling of allocation errors during cryptographic operations in the key exchange KEX phase. If a memory allocation fails, the resulting NULL pointer may...

Key Exchange without Entity Authentication

Overview Affected versions of this package are vulnerable to Key Exchange without Entity Authentication in the SFTP implementation in the wolfSSH backend. An attacker can intercept or manipulate data in transit by performing a man-in-the-middle attack. Note: This issue affects only users that bui...

Ubuntu: Security Advisory (USN-7849-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 / 25.10 : libssh vulnerability (USN-7849-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-7849-1 advisory. Philippe Antoine discovered that libssh did not properly manage memory when calculating a session ...

USN-7849-1: libssh vulnerability

Philippe Antoine discovered that libssh did not properly manage memory when calculating a session id during the key exchange process. An attacker could possibly use this issue to cause libssh to crash, resulting in a denial of service...

USN-7849-1 libssh vulnerability

Philippe Antoine discovered that libssh did not properly manage memory when calculating a session id during the key exchange process. An attacker could possibly use this issue to cause libssh to crash, resulting in a denial of service...

SUSE SLES12 Security Update : libssh (SUSE-SU-2025:3897-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2025:3897-1 advisory. - CVE-2025-8277: memory exhaustion leading to client-side DoS due to improper memory management when KEX process is repeated with incorrect guesses...

SUSE-SU-2025:3897-1 Security update for libssh

This update for libssh fixes the following issues: - CVE-2025-8277: memory exhaustion leading to client-side DoS due to improper memory management when KEX process is repeated with incorrect guesses bsc1249375...

SUSE SLES12 Security Update : chrony (SUSE-SU-2025:3868-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2025:3868-1 advisory. Security issues fixed: - Race condition during socket creation by chronyc allows privilege escalation from user chrony to root bsc1246544. Other issues...

Security update for chrony

This update for chrony fixes the following issues: Security issues fixed: - Race condition during socket creation by chronyc allows privilege escalation from user chrony to root bsc1246544. Other issues fixed: - Improve connection retry intervals when facing NTS-KE related issues bsc1213551. nts:...

PQC Key Exchange (KEX) Algorithm(s) Supported (SSH)

The remote SSH server is configured to allow / support at least ONE Post-Quantum Cryptography PQC key exchange KEX algorithms. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders...

PQC Key Exchange (KEX) Algorithm(s) Missing (SSH)

The remote SSH server is configured to NOT allow / support at least ONE Post-Quantum Cryptography PQC key exchange KEX algorithms. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders...

CVE-2025-11955

Incorrect validation of OCSP certificates vulnerability in TheGreenBow VPN, versions 7.5 and 7.6. During the IKEv2 authentication step, the OCSP-enabled VPN client establishes the tunnel even if it does not receive an OCSP response or if the OCSP response signature is invalid...

CVE-2025-11955

The CVE-2025-11955 describes an OCSP certificate validation flaw in TheGreenBow VPN Client, affecting version 7.5 and 7.6. The vulnerability lets the IKEv2 VPN tunnel be established even if no OCSP response is received or if the OCSP signature is invalid, due to incorrect OCSP validation during a...

CVE-2025-11955 Incorrect validation of OCSP certificates in TheGreenBow VPN Client Windows Enterprise

Incorrect validation of OCSP certificates vulnerability in TheGreenBow VPN, versions 7.5 and 7.6. During the IKEv2 authentication step, the OCSP-enabled VPN client establishes the tunnel even if it does not receive an OCSP response or if the OCSP response signature is invalid...

PT-2025-43935

Name of the Vulnerable Software and Affected Versions TheGreenBow VPN versions 7.5 through 7.6 Description The software does not properly validate OCSP certificates. During the IKEv2 authentication process, the VPN client establishes a tunnel even if an OCSP response is not received or if the OCS...

Siemens SIMATIC Devices Use of a Broken or Risky Cryptographic Algorithm (CVE-2023-50781)

A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-...

Security update for libssh

This update for libssh fixes the following issues: CVE-2025-8277: memory exhaustion leading to client-side DoS due to improper memory management when KEX process is repeated with incorrect guesses bsc1249375. CVE-2025-8114: NULL pointer dereference when an allocation error happens during the...

SUSE-SU-2025:3788-1 Security update for libssh

This update for libssh fixes the following issues: - CVE-2025-8277: memory exhaustion leading to client-side DoS due to improper memory management when KEX process is repeated with incorrect guesses bsc1249375. - CVE-2025-8114: NULL pointer dereference when an allocation error happens during the...

Security update for libssh

This update for libssh fixes the following issues: CVE-2025-8277: memory exhaustion leading to client-side DoS due to improper memory management when KEX process is repeated with incorrect guesses bsc1249375. CVE-2025-8114: NULL pointer dereference when an allocation error happens during the...