libssh-mirror

root@kitploit: .org The SSH library ¿Por qué? ¿Por qué no? : Empecé a trabajar en mi propia implementación del protocolo ssh porque no me gustaban las que estaban disponibles públicamente. Ninguna de ellas permitía importar y usar las funciones como una biblioteca potente, así que trabajé en una...

CVE-2024-3094

Good evening, I would like to inform you about a critical security issue that has been identified and directly affects the Linux community, including servers and Android devices. It was discovered that one of the contributors, known by the name of Jesse, has been distributing corrupted binaries...

DEBIAN-CVE-2026-56855

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

CVE-2026-56855 Prevent DoS on deadlocked established channel in golang.org/x/crypto/ssh

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

UBUNTU-CVE-2026-56854

The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback,...

Astra Linux – Vulnerability in libssh

A flaw was discovered in libssh, where it may attempt to open arbitrary files during configuration parsing. A local attacker can exploit this by providing a malicious configuration file or when the system is misconfigured. This vulnerability could lead to a Denial of Service DoS attack, as the...

Security Bulletin: Multiple vulnerabilities in IBM Aspera HTTP Gateway

Summary Multiple vulnerabilities were addressed in IBM Aspera HTTP Gateway version 2.3.4 Vulnerability Details CVEID:CVE-2026-2303 DESCRIPTION: The mongo-go-driver repository contains CGo bindings for GSSAPI Kerberos authentication on Linux and macOS. The C wrapper implementation contains a heap...

CVE-2026-68930

Russh is a Rust SSH client & server library. Prior to 0.62.5, russh dispatches channel-scoped Handler callbacks for recipient channel IDs that were never opened or confirmed in russh/src/server/encrypted.rs, serverreadauthenticated, and the execrequest callback. Version 0.62.5 fixes the issue...

JLSEC-2026-1087 libssh2 through 1.11.1, fixed in commit a13bb6c, contains a missing bounds check vulnerability...

libssh2 through 1.11.1, fixed in commit a13bb6c, contains a missing bounds check vulnerability that allows a malicious SSH server to trigger an arbitrary-length heap out-of-bounds read and a free of an uninitialized pointer via the publickey subsystem. In libssh2publickeylistfetch, the version 1...

July Linux Patch Wednesday

July Linux Patch Wednesday. A total of 2,017 vulnerabilities were addressed 539 in the Linux kernel and 504 in Chromium. For comparison, there were 1,888 vulnerabilities in June. Once again, a new record. Moreover, next month will most likely set another record, as 1,704 vulnerabilities have...

libssh2: libssh2: Arbitrary code execution via heap buffer overflow during SSH negotiation

A flaw was found in libssh2. A malicious SSH server can exploit a pre-authentication heap buffer overflow vulnerability by sending a specially crafted packet during the Encrypt-then-MAC ETM cipher negotiation. This allows the server to corrupt heap memory, potentially leading to arbitrary code...

libssh2: libssh2: Arbitrary code execution via double-free in SFTP session

A flaw was found in libssh2. A malicious SSH Secure Shell server can exploit a double-free vulnerability in the sftpopen function. This flaw allows the server to corrupt the heap memory of an authenticated client when it opens an SFTP SSH File Transfer Protocol session. This heap corruption can...

libssh2 Heap Out-of-Bounds Read via publickey subsystem

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Libssh: libssh: integrity downgrade via openssl aes-gcm tag verification

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Libssh: libssh: denial of service via sftp responses with unknown request ids

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assistant_daemon (0.1.0), async-ssh2-tokio (>=0.2.0, <=0.8.11) +7 more potentially affected by CVE-2026-73430 via russh (>=0.34.0, <=0.43.0)

russh CARGO version =0.34.0, =0.2.0, =0.1.0, =0.1.0, =0.2.0, =0.1.0, =0.4.1 - sshrpc 0.1.0 - tunnels 0.1.0 Source cves: CVE-2026-73430 Source advisory: OSV:GHSA-5XVQ-CP9X-6P6R...

CVE-2026-66035 libssh2 Heap Buffer Overflow via ETM Cipher Negotiation

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

EUVD-2026-48720

libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vulnerability in the ssh2ciphercrypt function in src/openssl.c that allows a malicious SSH server to crash any connecting client by negotiating AES-GCM ciphers during handshake. Attackers can exploit...

[SECURITY] Fedora 44 Update: libssh-0.12.1-1.fc44

The ssh library was designed to be used by programmers needing a working SSH implementation by the mean of a library. The complete control of the client is made by the programmer. With libssh, you can remotely execute programs, trans fer files, use a secure and transparent tunnel for your remote...

SUSE CVE-2026-59846

A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metacharacters, exposing environment variables and causing unintended shell behavior...