Updated libssh2 packages fix security vulnerabilities

The updated packages fix security vulnerabilities: Heap Buffer Over-read via sftpsymlink in sftp.c. CVE-2025-15661 libssh2 userauth.c userauthpassword integer overflow. CVE-2026-7598 Pre-Authentication DoS via SSHMSGEXTINFO Handler. CVE-2026-55199 Out-of-Bounds Write via Unchecked packetlength in...

EulerOS 2.0 SP10 : libssh2 (EulerOS-SA-2026-2659)

According to the versions of the libssh2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file...

EulerOS 2.0 SP12 : libssh2 (EulerOS-SA-2026-2543)

According to the versions of the libssh2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file...

GHSA-4R3C-5HPG-58QR Russh SSH message fields were decoded through allocation-first parsers before field-specific bounds

SSH message fields were decoded through allocation-first parsers before field-specific bounds Summary Several russh client and server message handlers decoded attacker-controlled SSH strings, name-lists, and byte fields into owned allocations before applying field-specific bounds. A remote SSH pe...

EUVD-2026-36129

Russh: Unchecked keyboard-interactive prompt count in client auth path...

Amazon Linux 2023 : libssh2, libssh2-devel (ALAS2023-2026-1779)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1779 advisory. A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file src/userauth.c. Such manipulation of the argument...

CLSA-2026-1778745959 libssh2: Fix of CVE-2026-7598

CVE-2026-7598: add usernamelen/passwordlen bounds checks in userauthlist and userauthpassword to prevent integer overflow when allocating the SSH USERAUTHREQUEST packet buffer...

CLSA-2026-1778247114 libssh2: Fix of CVE-2026-7598

CVE-2026-7598: fix integer overflow in userauthpassword CVE-2026-7598...

CLSA-2026-1778602853 Fix CVE(s): CVE-2026-7598

SECURITY UPDATE: fix integer overflow in usernamelen bounds checks across userauthlist, userauthpassword and password change paths in src/userauth.c - debian/patches/CVE-2026-7598.patch: fix integer overflow in usernamelen bounds checks across userauthlist, userauthpassword and password change...

Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2026-7598)

The version of CBL-Mariner Releases installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2026-7598 advisory. - A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the...

SUSE CVE-2026-7598

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file src/userauth.c. Such manipulation of the argument usernamelen/passwordlen leads to integer overflow. The attack may be launched remotely. The name of the patch is...

libssh2 userauth.c userauth_password integer overflow

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CVE-2026-7598

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file src/userauth.c. Such manipulation of the argument usernamelen/passwordlen leads to integer overflow. The attack may be launched remotely. The name of the patch is...

CVE-2026-7598

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file src/userauth.c. Such manipulation of the argument usernamelen/passwordlen leads to integer overflow. The attack may be launched remotely. The name of the patch is...

EUVD-2002-2383

Malware in sbrugna...

CVE-2002-2405

Check Point FireWall-1 4.1 and Next Generation NG, with UserAuth configured to proxy HTTP traffic only, allows remote attackers to pass unauthorized HTTPS, FTP and possibly other traffic through the firewall...

SUSE CVE-2006-4925

packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service crash by sending an invalid protocol sequence with USERAUTHSUCCESS before NEWKEYS, which causes newkeysmode to be NULL...

Fedora Update for libssh2 FEDORA-2019-5885663621

The remote host is missing an update for the Copyright C 2019 Greenbone Networks GmbH 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-or-later This program is free software; you can...

[SECURITY] Fedora 29 Update: libssh2-1.9.0-1.fc29

libssh2 is a library implementing the SSH2 protocol as defined by Internet Drafts: SECSH-TRANS22, SECSH-USERAUTH25, SECSH-CONNECTION23, SECSH-ARCH20, SECSH-FILEXFER06, SECSH-DHGEX04, and SECSH-NUMBERS10...

[SECURITY] Fedora 30 Update: libssh2-1.9.0-1.fc30

libssh2 is a library implementing the SSH2 protocol as defined by Internet Drafts: SECSH-TRANS22, SECSH-USERAUTH25, SECSH-CONNECTION23, SECSH-ARCH20, SECSH-FILEXFER06, SECSH-DHGEX04, and SECSH-NUMBERS10...