GHSA-45X7-PX36-X8W8 Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin

Summary Terrapin is a prefix truncation attack targeting the SSH protocol. More precisely, Terrapin breaks the integrity of SSH's secure channel. By carefully adjusting the sequence numbers during the handshake, an attacker can remove an arbitrary amount of messages sent by the client or server a...

AsyncSSH vulnerable to Prefix Truncation Attack (a.k.a. Terrapin Attack) against ChaCha20-Poly1305 and Encrypt-then-MAC

Summary AsyncSSH v2.14.1 and earlier is vulnerable to a novel prefix truncation attack a.k.a. Terrapin attack, which allows a man-in-the-middle attacker to strip an arbitrary number of messages right after the initial key exchange, breaking SSH extension negotiation RFC8308 in the process and thu...

GHSA-HFMC-7525-MJ55 AsyncSSH vulnerable to Prefix Truncation Attack (a.k.a. Terrapin Attack) against ChaCha20-Poly1305 and Encrypt-then-MAC

Summary AsyncSSH v2.14.1 and earlier is vulnerable to a novel prefix truncation attack a.k.a. Terrapin attack, which allows a man-in-the-middle attacker to strip an arbitrary number of messages right after the initial key exchange, breaking SSH extension negotiation RFC8308 in the process and thu...

AZL-32205 CVE-2023-51384 affecting package openssh for versions less than 8.9p1-3

In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS11-hosted private keys, these constraints are only applied to the first key, even if a PKCS11 token returns multiple keys...

CVE-2023-51384

In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS11-hosted private keys, these constraints are only applied to the first key, even if a PKCS11 token returns multiple keys...

DEBIAN-CVE-2023-51384

In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS11-hosted private keys, these constraints are only applied to the first key, even if a PKCS11 token returns multiple keys...

AZL-35082 CVE-2023-51385 affecting package openssh for versions less than 9.7p1-1

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or...

ALPINE-CVE-2023-51385

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or...

CVE-2023-51385

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or...

AZL-35081 CVE-2023-51384 affecting package openssh for versions less than 9.7p1-1

In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS11-hosted private keys, these constraints are only applied to the first key, even if a PKCS11 token returns multiple keys...

Code injection

In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS11-hosted private keys, these constraints are only applied to the first key, even if a PKCS11 token returns multiple keys...

Command injection

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or...

AZL-34581 CVE-2023-48795 affecting package cert-manager for versions less than 1.12.12-1

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted from the extension negotiation message, and a client and server may consequently end up with a connecti...

AZL-32201 CVE-2023-48795 affecting package libssh2 for versions less than 1.9.0-4

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted from the extension negotiation message, and a client and server may consequently end up with a connecti...

AZL-37154 CVE-2023-48795 affecting package python-paramiko 2.12.0-2

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted from the extension negotiation message, and a client and server may consequently end up with a connecti...

AZL-32224 CVE-2023-48795 affecting package moby-compose for versions less than 2.17.3-5

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted from the extension negotiation message, and a client and server may consequently end up with a connecti...

AZL-35435 CVE-2023-48795 affecting package docker-buildx for versions less than 0.14.0-1

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted from the extension negotiation message, and a client and server may consequently end up with a connecti...

AZL-32202 CVE-2023-48795 affecting package nmap for versions less than 7.93-2

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted from the extension negotiation message, and a client and server may consequently end up with a connecti...

AZL-32229 CVE-2023-48795 affecting package terraform for versions less than 1.3.2-25

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted from the extension negotiation message, and a client and server may consequently end up with a connecti...

CVE-2023-48795

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted from the extension negotiation message, and a client and server may consequently end up with a connecti...