curl: Redirect to imap/pop3/smtp (SASL) or sftp/scp (libssh) authenticates to the attacker's host with the user's ambient Kerberos credentials

Summary: When curl follows a redirect to an IMAP, POP3 or SMTP URL carrying any userinfo imap://@attacker.example/ is enough, it authenticates to the redirect target with SASL GSSAPI out of the user's default Kerberos credential cache, although no credentials and no authentication method were...

Astra Linux – Vulnerability in libssh

In libssh 0.9.4, there is a NULL pointer dereferencing in tftpserver.c if sshbuffernew returns NULL...

Unity Linux 20.1070a Security Update: libssh (UTSA-2026-130121)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130121 advisory. A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep queued indefinitely, causing unbounded memory...

Unity Linux 20.1070a Security Update: libssh (UTSA-2026-130149)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130149 advisory. A flaw was found in libssh. When ProxyCommand is used, an unchecked fork failure can be stored as process ID -1; during cleanup, signals may then be sent across the...

Unity Linux 20.1070a Security Update: libssh (UTSA-2026-130152)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130152 advisory. A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been...

Unity Linux 20.1070a Security Update: libssh (UTSA-2026-130108)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130108 advisory. A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metacharacters, exposing environment variables and...

Unity Linux 20.1070a Security Update: libssh (UTSA-2026-130144)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130144 advisory. A flaw was found in libssh. A remote authenticated client can issue SSHFXPREAD requests with an arbitrarily large length, causing a libssh SFTP server to allocate...

Unity Linux 20.1070a Security Update: libssh (UTSA-2026-130147)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130147 advisory. A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-pat...

Security Bulletin:A vulnerability in libssh affects IBM SAN Volume Controller, IBM Storage Virtualize and IBM FlashSystem products

Summary A vulnerability in libssh affects IBM Storage Virtualize products and could result in a confidentiality impact. CVE-2025-5318. Vulnerability Details CVEID:CVE-2025-5318 DESCRIPTION: A flaw was found in the libssh library in versions less than 0.11.2. An out-of-bounds read can be triggered...

Security Bulletin: Vulnerabilities in the kernel and libssh affect IBM SAN Volume Controller, IBM Storwize, IBM Spectrum Virtualize and IBM FlashSystem products

Summary Vulnerabilities in libssh and the kernel affect IBM Storage Virtualize products and could cause denial of service and privilege escalation impacts. CVE-2025-5987 CVE-2025-39966 CVE-2025-40176 Vulnerability Details CVEID:CVE-2025-5987 DESCRIPTION: A flaw was found in libssh when using the...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : libssh vulnerabilities (USN-8699-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8699-1 advisory. It was discovered that libssh had a stack buffer overflow in its SFTP server when constructing directory listing entries for long...

K000163675: libssh vulnerability CVE-2026-59848

Security Advisory Description A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep queued indefinitely, causing unbounded memory growth and client-side denial of service. CVE-2026-59848 Impact An attacker could cause SFTP client...

K000163667: libssh vulnerability CVE-2026-59842

Security Advisory Description A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated...

Security Bulletin: IBM Integrated Analytics System (IIAS) is affected by multiple vulnerabilities in system and open source components

Summary IBM Integrated Analytics System IIAS includes various open source packages, runtimes, and system libraries as part of its underlying platform. Multiple security vulnerabilities have been identified across components including Oracle Java SE, cryptography, Apache HttpComponents, libssh,...

EulerOS 2.0 SP11 : libssh (EulerOS-SA-2026-4249)

According to the versions of the libssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSHMSGCHANNELOPEN, causing later channel write...

EulerOS 2.0 SP11 : libssh (EulerOS-SA-2026-4340)

According to the versions of the libssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSHMSGCHANNELOPEN, causing later channel write...

EulerOS 2.0 SP13 : libssh (EulerOS-SA-2026-4064)

According to the versions of the libssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSHMSGCHANNELOPEN, causing later channel write...

EulerOS 2.0 SP13 : libssh (EulerOS-SA-2026-4155)

According to the versions of the libssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSHMSGCHANNELOPEN, causing later channel write...

cve-2018-10933

CVE-2018-10933 CVE-2018-10933 omisión de autenticación de libssh, un contenedor Docker vulnerable que escucha en el puerto 2222 para explotación. Un parche básico de prueba de concepto de libssh incluido en el contenedor para omitir la autenticación. Para iniciar sesión use el "myuser" /...

Security Bulletin: Multiple vulnerabilities in IBM Cloud Pak System

Summary Multiple vulnerabilities were found in linux kernel, libssh expat, libssh, openSSL in Platform System Manager PSM OS Image for Red Hat Enterprise Linux v8 shipped with IBM Cloud Pak System. Those vulnerabilities were addressed in IBM Cloud Pak System version 2.3.6.2. Vulnerability Details...