CVE-2016-6515 Information
Share on:Description
The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Reference
http://openwall.com/lists/oss-security/2016/08/01/2 http://packetstormsecurity.com/files/140070/OpenSSH-7.2-Denial-Of-Service.html http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html http://www.securityfocus.com/bid/92212 http://www.securitytracker.com/id/1036487 https://access.redhat.com/errata/RHSA-2017:2029 https://github.com/openssh/openssh-portable/commit/fcd135c9df440bcd2d5870405ad3311743d78d97 https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html https://lists.fedoraproject.org/archives/list/[email protected]/message/X2L6RW34VFNXYNVVN2CN73YAGJ5VMTFU/ https://security.FreeBSD.org/advisories/FreeBSD-SA-17:06.openssh.asc https://security.netapp.com/advisory/ntap-20171130-0003/ https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03779en_us https://www.exploit-db.com/exploits/40888/
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
NONE
Availability Impact
NONE
Base Score
HIGH
Base Severity
7.5