SSH-Weak-DH

소개 이 도구는 서버에 SSH 연결을 생성하고 다양한 클라이언트 구성을 시도하여 서버가 약한 그룹을 사용한 Diffie-HellmanDH 키 교환을 허용하는지 확인합니다. 우리는 이 도구가 SSH 서버의 취약한 DH 키 교환 설정을 평가하는 데 도움이 되기를 목표로 합니다. 이 도구는 제한된 구성 집합만 테스트하므로 일부 취약한 구성이 탐지되지 않을 수 있다는 점을 유의하십시오. 또한 서버가 스캔이 완료되기 전에 연결을 차단할 수 있습니다. 약한 그룹을 사용한 DH 키 교환을 악용하는 공격으로부터 SSH 서버와 클라이언트를...

AlmaLinux 9.2 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc (ALMALINUX9.2:CLSA-2026:1783694178)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1783694178 advisory. - A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie- Hellman Group Exchange DH-GEX...

Rocky Linux 9.6 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc (ALMALINUX9.6:CLSA-2026:1783706054)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1783706054 advisory. - A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie- Hellman Group Exchange DH-GEX...

AlmaLinux 9.6 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc (ALMALINUX9.6:CLSA-2026:1783706054)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1783706054 advisory. - A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie- Hellman Group Exchange DH-GEX...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: shim (UTSA-2026-091452)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-091452 advisory. During key agreement in a TLS handshake using a DHE based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client ...

AZL-102626 CVE-2026-90230 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix heap out-of-bounds read in nvmetauthnegotiate nvmetexecuteauthsend allocates the DH-HMAC-CHAP message buffer with the host-supplied transfer length tl and hands it to nvmetauthnegotiate without passing tl along...

CVE-2026-90230 nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate()

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix heap out-of-bounds read in nvmetauthnegotiate nvmetexecuteauthsend allocates the DH-HMAC-CHAP message buffer with the host-supplied transfer length tl and hands it to nvmetauthnegotiate without passing tl along...

CVE-2026-90230: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix heap out-of-bounds read in nvmetauthnegotiate nvmetexecuteauthsend allocates the DH-HMAC-CHAP message buffer with the host-supplied transfer length tl and hands it to nvmetauthnegotiate without passing tl along...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: Assign dhkey to NULL after kfreesensitive. ctrl-dhkey may be used across multiple calls to nvmetsetupdhgroup for the same controller. Therefore, it’s better to set it to NULL after a error-free release, in order to...

Astra Linux – Vulnerability in StrongSwan

StrongSwan before version 5.9.12 has a buffer overflow vulnerability, and there is a possibility of unauthenticated remote code execution through a DH public key value that exceeds the internal buffer of charon-tkm’s DH proxy. The earliest affected version is 5.3.0. An attack can occur through a...

Astra Linux – Vulnerability in OpenSSL

Issue summary: Generating excessively long X9.42 DH keys or checking overly long X9.42 DH keys or parameters can be very slow. Applications that use functions like DHgeneratekey to generate an X9.42 DH key may experience prolonged delays. Similarly, applications that use functions like...

Astra Linux – Vulnerability in OpenSSL

Issue summary: Checking excessively long DH keys or parameters can be very slow. Applications that use functions such as DHcheck, DHcheckex, or EVPPKEYparamcheck to check DH keys or parameters may experience prolonged delays. If the keys or parameters being checked were obtained from an untrusted...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053299)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053299 advisory. In the Linux kernel, the following vulnerability has been resolved: crypto: qat - add param check for DH Reject requests with a source buffer that is bigger than the...

CVE-2026-80791 nvmet-auth: zero the AUTH_RECEIVE response buffer

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: zero the AUTHRECEIVE response buffer nvmetexecuteauthreceive allocates the response buffer with kmalloc sized by the host-supplied AUTHRECEIVE allocation length, but the DH-HMAC-CHAP builders write only a fixed-size...

Linux Distros Unpatched Vulnerability : CVE-2026-80791

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nvmet-auth: zero the AUTHRECEIVE response buffer nvmetexecuteauthreceive allocates the response buffer with kmalloc sized by the host-supplied AUTHRECEIVE...

Injection org.bouncycastle:bcprov-lts8on Dependency in Jira Software Data Center

This is a vulnerability in a non-Atlassian Jira Software dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This Critical severity Injection vulnerability was introduced in versions 9.12.1, 10.0.0, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0,...

openssl: FFC-DH Peer Validation Uses Attacker-Supplied q

A flaw was found in OpenSSL. A malicious peer can exploit this vulnerability by presenting a specially crafted DHX X9.42 peer key. Due to improper validation of the peer key's subgroup membership, an attacker can recover the victim's private key after a small number of key exchange attempts. This...

Injection at Bouncy Castle Dependency in Jira Service Management Data Center

This is a vulnerability in a non-Atlassian Jira Service Management dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This Critical severity Injection vulnerability was introduced in versions 10.0.0, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0,...

Injection Bouncy Castle Dependency in Confluence Data Center

This is a vulnerability in a non-Atlassian Confluence dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This Critical severity Injection vulnerability was introduced in versions 8.9.0, 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0, and...

openssl: FFC-DH Peer Validation Uses Attacker-Supplied q

A flaw was found in OpenSSL. A malicious peer can exploit this vulnerability by presenting a specially crafted DHX X9.42 peer key. Due to improper validation of the peer key's subgroup membership, an attacker can recover the victim's private key after a small number of key exchange attempts. This...