CVE-2016-6515
UnknownEPSS 57.67%
Last modified
CVE-2016-6515 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 57.67% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Openbsd | Openssh | <= 7.2 | P2 |
| Fedoraproject | Fedora | 24 | — |
References
- http://openwall.com/lists/oss-security/2016/08/01/2Third Party Advisory, VDB Entry
- http://openwall.com/lists/oss-security/2016/08/01/2Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-6515?
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.
How severe is CVE-2016-6515?
Severity scoring for CVE-2016-6515 is pending analysis. The EPSS model estimates a 57.67% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6515?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2016-6515?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST