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openssh: Out of sequence NEWKEYS message can allow remote attacker to cause denial of service

🗓️ 01 Aug 2017 14:11:55Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 2 Views

Remote attacker can DoS OpenSSH before 7.4 via out-of-sequence NEWKEYS, causing NULL pointer dereference.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM Integrated Management Module II (IMM2) is affected by vulnerabilities in OpenSSH
7 Dec 202322:45
–ibm
IBM Security Bulletins		Security Bulletin: IBM Dynamic System Analysis (DSA) Preboot is affected by vulnerabilities in OpenSSH
7 Dec 202322:45
–ibm
IBM Security Bulletins		Security Bulletin: IBM Flex System Chassis Management Module (CMM) is affected by vulnerabilities in OpenSSH
7 Dec 202322:45
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in OpenSSH affects QLogic 8Gb Intelligent Pass-thru Module and SAN Switch Module for IBM BladeCenter
12 Sep 201817:36
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in OpenSSH affects IBM SAN Volume Controller, IBM Storwize and IBM FlashSystem products (CVE-2016-10708)
29 Mar 202301:48
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in OpenSSH affect IBM BladeCenter Advanced Management Module (AMM)
3 Oct 201816:05
–ibm
Tenable Nessus		OpenSSH 7.x < 7.4 Multiple Vulnerabilities
9 Jan 201700:00
–nessus
Tenable Nessus		CentOS 7 : openssh (CESA-2017:2029)
25 Aug 201700:00
–nessus
Tenable Nessus		Debian DLA-1257-1 : openssh security update
29 Jan 201800:00
–nessus
Tenable Nessus		EulerOS 2.0 SP1 : openssh (EulerOS-SA-2018-1068)
20 Mar 201800:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7aarch64openssh0:7.4p1-11.el7openssh-0:7.4p1-11.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64openssh0:7.4p1-11.el7openssh-0:7.4p1-11.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64leopenssh0:7.4p1-11.el7openssh-0:7.4p1-11.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xopenssh0:7.4p1-11.el7openssh-0:7.4p1-11.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64openssh0:7.4p1-11.el7openssh-0:7.4p1-11.el7.x86_64.rpm
Red Hat Enterprise Linux7aarch64openssh-askpass0:7.4p1-11.el7openssh-askpass-0:7.4p1-11.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64openssh-askpass0:7.4p1-11.el7openssh-askpass-0:7.4p1-11.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64leopenssh-askpass0:7.4p1-11.el7openssh-askpass-0:7.4p1-11.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xopenssh-askpass0:7.4p1-11.el7openssh-askpass-0:7.4p1-11.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64openssh-askpass0:7.4p1-11.el7openssh-askpass-0:7.4p1-11.el7.x86_64.rpm
Rows per page

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25 Jun 2026 10:50Current
7.2High risk
Vulners AI Score7.2
CVSS 25
CVSS 37.5
CVSS 3.17.5
EPSS0.16002
SSVC
CWE-20
open sshdenial of serviceout of sequencenewkeys messageremote attacker
2