Vulnerability Description
Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openssh | >= 5.9, <= 7.8 |
| Netapp | Cloud Backup | - |
| Netapp | Data Ontap Edge | - |
| Netapp | Ontap Select Deploy | - |
| Netapp | Steelstore | - |
| Netapp | Cn1610 Firmware | - |
| Netapp | Cn1610 | - |
Related Weaknesses (CWE)
References
- http://seclists.org/oss-sec/2018/q3/180Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/105163Third Party AdvisoryVDB Entry
- https://security.netapp.com/advisory/ntap-20181221-0001/Third Party Advisory
- http://seclists.org/oss-sec/2018/q3/180Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/105163Third Party AdvisoryVDB Entry
- https://security.netapp.com/advisory/ntap-20181221-0001/Third Party Advisory
FAQ
What is CVE-2018-15919?
CVE-2018-15919 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states '...
How severe is CVE-2018-15919?
CVE-2018-15919 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-15919?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openssh, Netapp Cloud Backup, Netapp Data Ontap Edge, Netapp Ontap Select Deploy, Netapp Steelstore.