DEBIAN-CVE-2011-4120

Source
https://security-tracker.debian.org/tracker/CVE-2011-4120
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2011-4120.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2011-4120
Upstream
Published
2019-11-26T05:15:13.130Z
Modified
2025-11-14T03:04:00.315246Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Yubico PAM Module before 2.10 performed user authentication when 'usefirstpass' PAM configuration option was not used and the module was configured as 'sufficient' in the PAM configuration. A remote attacker could use this flaw to circumvent common authentication process and obtain access to the account in question by providing a NULL value (pressing Ctrl-D keyboard sequence) as the password string.

References

Affected packages

Debian:11 / yubico-pam

Package

Name
yubico-pam
Purl
pkg:deb/debian/yubico-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.10-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / yubico-pam

Package

Name
yubico-pam
Purl
pkg:deb/debian/yubico-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.10-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / yubico-pam

Package

Name
yubico-pam
Purl
pkg:deb/debian/yubico-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.10-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:14 / yubico-pam

Package

Name
yubico-pam
Purl
pkg:deb/debian/yubico-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.10-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}