CVE-2016-6515
openssh - security update
7.5
HIGH
CVSS 3.1
EPSS 77.1%
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.
How to fix CVE-2016-6515
To remediate CVE-2016-6515, upgrade the affected package to a fixed version below.
- Alpine/openssh—upgrade to 6.8_p1-r8 or later
- —upgrade to 1:7.3p1-1 or later
- —upgrade to 1:6.0p1-4+deb7u6 or later
Is CVE-2016-6515 being exploited?
Likely — EPSS is 77.1%, placing CVE-2016-6515 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (3)
- from 0, < 6.8_p1-r8
- from 0, < 1:7.3p1-1
- from 0, < 1:6.0p1-4+deb7u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |