CVE-2016-6515
At a glance
- Source
- NVD
- EPSS
- EPSS 58.57 % · percentile 99 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
References
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03779en_us
- https://security.netapp.com/advisory/ntap-20171130-0003/
- https://github.com/openssh/openssh-portable/commit/fcd135c9df440bcd2d5870405ad3311743d78d97
- http://packetstormsecurity.com/files/140070/OpenSSH-7.2-Denial-Of-Service.html
- https://www.exploit-db.com/exploits/40888/
- http://www.securityfocus.com/bid/92212
- https://security.FreeBSD.org/advisories/FreeBSD-SA-17:06.openssh.asc
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.securitytracker.com/id/1036487
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X2L6RW34VFNXYNVVN2CN73YAGJ5VMTFU/
- https://access.redhat.com/errata/RHSA-2017:2029
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
- http://openwall.com/lists/oss-security/2016/08/01/2
- https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2016-7437
- GCVE · GCVE-0-2016-6515
CERT-FR advisories
- CERTFR-2022-AVI-1094 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2021-AVI-214 — Multiples vulnérabilités dans Moxa EDR-810 · cert.ssi.gouv.fr
- CERTFR-2017-AVI-012 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:openbsd:openssh:*:p2:*:*:*:*:*:*≤ 7.2cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |