CVE-2016-8858
High · 7.5CVSS
7.5
EPSS
29.5%
Published
Dec 9, 2016
CISA due date
—
The record
The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:11 | openssh | 0 | 1:7.3p1-2 |
| Debian:12 | openssh | 0 | 1:7.3p1-2 |
| Debian:13 | openssh | 0 | 1:7.3p1-2 |
| Debian:14 | openssh | 0 | 1:7.3p1-2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | openssh | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Desktop 12 SP1 | openssh-askpass-gnome | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Desktop 12 SP2 | openssh | 0 | 7.2p2-66.1 |
| SUSE:Linux Enterprise Desktop 12 SP2 | openssh-askpass-gnome | 0 | 7.2p2-66.3 |
| SUSE:Linux Enterprise Point of Sale 11 SP3 | openssh | 0 | 6.2p2-0.40.1 |
| SUSE:Linux Enterprise Point of Sale 11 SP3 | openssh-askpass-gnome | 0 | 6.2p2-0.40.3 |
| SUSE:Linux Enterprise Server 11 SP3-LTSS | openssh | 0 | 6.2p2-0.40.1 |
| SUSE:Linux Enterprise Server 11 SP3-LTSS | openssh-askpass-gnome | 0 | 6.2p2-0.40.3 |
| SUSE:Linux Enterprise Server 11 SP3-TERADATA | openssh | 0 | 6.2p2-0.40.1 |
| SUSE:Linux Enterprise Server 11 SP3-TERADATA | openssh-askpass-gnome | 0 | 6.2p2-0.40.3 |
| SUSE:Linux Enterprise Server 11 SP4 | openssh | 0 | 6.6p1-35.1 |
| SUSE:Linux Enterprise Server 11 SP4 | openssh-askpass-gnome | 0 | 6.6p1-35.4 |
| SUSE:Linux Enterprise Server 11-SECURITY | openssh-openssl1 | 0 | 6.6p1-18.1 |
| SUSE:Linux Enterprise Server 12 SP1 | openssh | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Server 12 SP1 | openssh-askpass-gnome | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Server 12 SP2 | openssh | 0 | 7.2p2-66.1 |
| SUSE:Linux Enterprise Server 12 SP2 | openssh-askpass-gnome | 0 | 7.2p2-66.3 |
| SUSE:Linux Enterprise Server 12-LTSS | openssh | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Server 12-LTSS | openssh-askpass-gnome | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | openssh | 0 | 7.2p2-66.1 |
| SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | openssh-askpass-gnome | 0 | 7.2p2-66.3 |
| SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | openssh | 0 | 6.6p1-35.1 |
| SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | openssh-askpass-gnome | 0 | 6.6p1-35.4 |
| SUSE:Linux Enterprise Server for SAP Applications 12 | openssh | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 | openssh-askpass-gnome | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | openssh | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | openssh-askpass-gnome | 0 | 6.6p1-54.7.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | openssh | 0 | 7.2p2-66.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | openssh-askpass-gnome | 0 | 7.2p2-66.3 |
| SUSE:Manager 2.1 | openssh | 0 | 6.2p2-0.40.1 |
| SUSE:Manager 2.1 | openssh-askpass-gnome | 0 | 6.2p2-0.40.3 |
| SUSE:Manager Proxy 2.1 | openssh | 0 | 6.2p2-0.40.1 |
| SUSE:Manager Proxy 2.1 | openssh-askpass-gnome | 0 | 6.2p2-0.40.3 |
| SUSE:OpenStack Cloud 5 | openssh | 0 | 6.2p2-0.40.1 |
| SUSE:OpenStack Cloud 5 | openssh-askpass-gnome | 0 | 6.2p2-0.40.3 |
| Ubuntu:Pro:14.04:LTS | openssh | 0 | No fix |
| Ubuntu:Pro:16.04:LTS | openssh | 0 | No fix |
| openSUSE:Tumbleweed | openssh | 0 | 8.4p1-7.4 |
Related vulnerabilities
- CVE-2023-51385 In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host… Also affects openssh
- CVE-2021-41617 sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are… Also affects openssh
- CVE-2016-10708 sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL… Also affects openssh
- CVE-2016-1908 The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11… Also affects openssh
- CVE-2016-6210 sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing… Also affects openssh
- CVE-2016-10009 Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4… Also affects openssh
- CVE-2016-6515 The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit… Also affects openssh
- CVE-2015-8325 The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the… Also affects openssh