What’s Vulnerable › Vulnerabilities

CVE-2019-7639

• Severity: high (CVSS 8.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-02-08 · updated 2026-06-17
• Weakness: CWE-863

Description

An issue was discovered in gsi-openssh-server 7.9p1 on Fedora 29. If PermitPAMUserChange is set to yes in the /etc/gsissh/sshd_config file, logins succeed with a valid username and an incorrect password, even though a failure entry is recorded in the /var/log/messages file.

Affected products

• Fedoraproject Fedora: 28, 29
• Gsi-Openssh Project Gsi-Openssh: 7.9-p1

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1673802
• https://bugzilla.redhat.com/show_bug.cgi?id=1673802

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