What is CVE-2016-4422?

CVE-2016-4422 is a critical-severity vulnerability in Libpam-Sshauth Project, classified under Improper Authentication. CVSS score: 9.8/10. Published 2016-05-06.

How severe is CVE-2016-4422?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Libpam-Sshauth Project

CVE-2016-4422

The pam_sm_authenticate function in pam_sshauth.c in libpam-sshauth might allow context-dependent attackers to bypass authentication or gain privileges via a system user account.

Vulnerability class: Broken Authentication

EPSS: 0.018 (76.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Libpam-sshauth_project Libpam-sshauth
Debian Debian_linux — versions 8.0
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

security@debian.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
security@debian.org (x_refsource_CONFIRM, Broken Link)

Frequently asked questions

What is CVE-2016-4422?: CVE-2016-4422 is a critical-severity vulnerability in Libpam-Sshauth Project, classified under Improper Authentication. CVSS score: 9.8/10. Published 2016-05-06.
How severe is CVE-2016-4422?: Critical severity. CVSS v3 base score is 9.8 out of 10.