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Fencer Intel
medium 4.1

CVE-2019-3811 json

A vulnerability was found in sssd.

published 7y ago modified 4mo ago also EUVD-2019-13434

cvss
4.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

A vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return '/' (the root directory) instead of '' (the empty string / no home directory). This could impact services that restrict the user's filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable.

Patch / fix

  • fedoraproject sssd 2.1
  • sssd Debian 14, Debian 13, Debian 12 2.2.0-1

debian advisories DEBIAN-CVE-2019-3811

  • sssd Ubuntu 18.04 LTS 1.16.1-1ubuntu1.8

ubuntu advisories UBUNTU-CVE-2019-3811

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • sssd RHEL 7 1.16.4-21.el7
  • sssd-ad RHEL 7 1.16.4-21.el7
  • sssd-ipa RHEL 7 1.16.4-21.el7
  • sssd-kcm RHEL 7 1.16.4-21.el7
  • sssd-dbus RHEL 7 1.16.4-21.el7
  • sssd-krb5 RHEL 7 1.16.4-21.el7
  • sssd-ldap RHEL 7 1.16.4-21.el7
  • python-sss RHEL 7 1.16.4-21.el7

red hat advisories RHSA-2019:2177

  • sssd SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 1.13.4-34.31.1
  • adcli SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 0.8.2-1.3.1
  • sssd SLES for SAP 12 SP4, SLES 12 SP4, SLED 12 SP4 +1 more 1.16.1-4.3.2
  • sssd SLE Module for Basesystem 15 1.16.1-3.15.1
  • sssd SLES 12-LTSS 1.11.5.1-10.16.1

suse advisories SUSE-SU-2019:0805-1SUSE-SU-2019:0556-1SUSE-SU-2019:0552-1SUSE-SU-2019:0542-1

  • sssd openSUSE Tumbleweed 2.9.3-2.1
  • sssd openSUSE Leap 15.0 1.16.1-lp150.2.9.1
  • adcli openSUSE Leap 15.0 0.8.2-lp150.4.1

opensuse advisories openSUSE-SU-2024:13446-1openSUSE-SU-2019:0344-1

Is CVE-2019-3811 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-3811 updated cvss 4.1

sssd: fallback_homedir returns '/' for empty home directories in passwd file

  • Red Hat Enterprise Linux 6 sssd, sssd-ad, sssd-ipa, sssd-dbus, sssd-krb5, sssd-ldap, +19 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) sssd 1.16.4-21.el7, sssd-ad 1.16.4-21.el7, sssd-ipa 1.16.4-21.el7, sssd-kcm 1.16.4-21.el7, sssd-dbus 1.16.4-21.el7, sssd-krb5 1.16.4-21.el7, +21 more Red Hat Enterprise Linux Client Optional (v. 7) python-libsss_nss_idmap 1.16.4-21.el7 Red Hat Enterprise Linux ComputeNode (v. 7) sssd 1.16.4-21.el7, sssd-ad 1.16.4-21.el7, sssd-ipa 1.16.4-21.el7, sssd-kcm 1.16.4-21.el7, sssd-dbus 1.16.4-21.el7, sssd-krb5 1.16.4-21.el7, +21 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-libsss_nss_idmap 1.16.4-21.el7 Red Hat Enterprise Linux Server (v. 7) sssd 1.16.4-21.el7, sssd-ad 1.16.4-21.el7, sssd-ipa 1.16.4-21.el7, sssd-kcm 1.16.4-21.el7, sssd-dbus 1.16.4-21.el7, sssd-krb5 1.16.4-21.el7, +22 more Red Hat Enterprise Linux Server Optional (v. 7) python-libsss_nss_idmap 1.16.4-21.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) sssd 1.16.4-21.el7, sssd-ad 1.16.4-21.el7, sssd-ipa 1.16.4-21.el7, sssd-kcm 1.16.4-21.el7, sssd-dbus 1.16.4-21.el7, sssd-krb5 1.16.4-21.el7, +22 more Red Hat Enterprise Linux Workstation Optional (v. 7) sssd-debuginfo 1.16.4-21.el7, libipa_hbac-devel 1.16.4-21.el7, libsss_idmap-devel 1.16.4-21.el7, libsss_certmap-devel 1.16.4-21.el7, libsss_nss_idmap-devel 1.16.4-21.el7, libsss_simpleifp-devel 1.16.4-21.el7, +1 more
    fixed: vendor fix RHSA-2019:2177
  • Red Hat Enterprise Linux 8 sssd, sssd-ad, sssd-idp, sssd-ipa, sssd-kcm, sssd-dbus, +24 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 4.1 CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
NVD 3.1 5.2 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 2.7 AV:A/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • The sssd Project sssd

Classification

Weakness
  • CWE-552 Files or Directories Accessible to External Parties
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.