National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-6515 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://openwall.com/lists/oss-security/2016/08/01/2 Third Party Advisory VDB Entry
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 Issue Tracking Patch
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X2L6RW34VFNXYNVVN2CN73YAGJ5VMTFU/ Third Party Advisory
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/

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:openbsd:openssh:*:p2:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
7.2

Configuration 2 ( hide )
 cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

13 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-6515
NVD Published Date:
08/07/2016
NVD Last Modified:
09/11/2018