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Fencer Intel
high 8.8

CVE-2022-4254 json

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

published 3y ago modified 4mo ago also EUVD-2022-51610

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

Patch / fix

  • fedoraproject sssd 2.3.1
  • sssd Debian 14, Debian 13, Debian 12 2.3.1-1

debian advisories DEBIAN-CVE-2022-4254

  • sssd Ubuntu 20.04 LTS 2.2.3-3ubuntu0.11

ubuntu advisories UBUNTU-CVE-2022-4254

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 1.16.5-10.el7_9.15
  • sssd-ad RHEL 7 1.16.5-10.el7_9.15
  • sssd-ipa RHEL 7 1.16.5-10.el7_9.15
  • sssd-kcm RHEL 7 1.16.5-10.el7_9.15
  • sssd-dbus RHEL 7 1.16.5-10.el7_9.15
  • sssd-krb5 RHEL 7 1.16.5-10.el7_9.15
  • sssd-ldap RHEL 7 1.16.5-10.el7_9.15
  • python-sss RHEL 7 1.16.5-10.el7_9.15

red hat advisories RHSA-2023:0403RHSA-2023:0442RHSA-2023:0397

  • sssd SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.16.1-7.49.1
  • sssd SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLE High Performance Computing 15 SP2-LTSS +1 more 1.16.1-150200.17.26.1
  • sssd SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS +1 more 1.16.1-150000.8.70.1
  • sssd SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Real Time 15 SP3 +9 more 1.16.1-150300.23.37.1
  • sssd SLES for SAP 12 SP4, SLES 12 SP4-LTSS, OpenStack Cloud Crowbar 9 +1 more 1.16.1-4.43.1

suse advisories SUSE-SU-2023:0301-1SUSE-SU-2023:0300-1SUSE-SU-2023:0292-1SUSE-SU-2023:0204-1SUSE-SU-2023:0200-1

Is CVE-2022-4254 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-2022-4254 updated cvss 8.8

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) sssd 2.2.3-20.el8_2.2, sssd-ad 2.2.3-20.el8_2.2, sssd-ipa 2.2.3-20.el8_2.2, sssd-kcm 2.2.3-20.el8_2.2, sssd-dbus 2.2.3-20.el8_2.2, sssd-krb5 2.2.3-20.el8_2.2, +23 more
    fixed: vendor fix RHSA-2023:0397
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) sssd 2.2.0-19.el8_1.3, sssd-ad 2.2.0-19.el8_1.3, sssd-ipa 2.2.0-19.el8_1.3, sssd-kcm 2.2.0-19.el8_1.3, sssd-dbus 2.2.0-19.el8_1.3, sssd-krb5 2.2.0-19.el8_1.3, +23 more
    fixed: vendor fix RHSA-2023:0442
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) sssd 2.2.3-20.el8_2.2, sssd-ad 2.2.3-20.el8_2.2, sssd-ipa 2.2.3-20.el8_2.2, sssd-kcm 2.2.3-20.el8_2.2, sssd-dbus 2.2.3-20.el8_2.2, sssd-krb5 2.2.3-20.el8_2.2, +23 more Red Hat Enterprise Linux BaseOS TUS (v. 8.2) sssd 2.2.3-20.el8_2.2, sssd-ad 2.2.3-20.el8_2.2, sssd-ipa 2.2.3-20.el8_2.2, sssd-kcm 2.2.3-20.el8_2.2, sssd-dbus 2.2.3-20.el8_2.2, sssd-krb5 2.2.3-20.el8_2.2, +23 more
    fixed: vendor fix RHSA-2023:0397
  • Red Hat Enterprise Linux Client (v. 7) sssd 1.16.5-10.el7_9.15, sssd-ad 1.16.5-10.el7_9.15, sssd-ipa 1.16.5-10.el7_9.15, sssd-kcm 1.16.5-10.el7_9.15, sssd-dbus 1.16.5-10.el7_9.15, sssd-krb5 1.16.5-10.el7_9.15, +21 more Red Hat Enterprise Linux Client Optional (v. 7) python-libsss_nss_idmap 1.16.5-10.el7_9.15 Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-libsss_nss_idmap 1.16.5-10.el7_9.15 Red Hat Enterprise Linux Server (v. 7) sssd 1.16.5-10.el7_9.15, sssd-ad 1.16.5-10.el7_9.15, sssd-ipa 1.16.5-10.el7_9.15, sssd-kcm 1.16.5-10.el7_9.15, sssd-dbus 1.16.5-10.el7_9.15, sssd-krb5 1.16.5-10.el7_9.15, +22 more Red Hat Enterprise Linux Server Optional (v. 7) python-libsss_nss_idmap 1.16.5-10.el7_9.15 Red Hat Enterprise Linux Workstation (v. 7) sssd 1.16.5-10.el7_9.15, sssd-ad 1.16.5-10.el7_9.15, sssd-ipa 1.16.5-10.el7_9.15, sssd-kcm 1.16.5-10.el7_9.15, sssd-dbus 1.16.5-10.el7_9.15, sssd-krb5 1.16.5-10.el7_9.15, +22 more
    +1 more products
    Red Hat Enterprise Linux Workstation Optional (v. 7) sssd-debuginfo 1.16.5-10.el7_9.15, libipa_hbac-devel 1.16.5-10.el7_9.15, libsss_idmap-devel 1.16.5-10.el7_9.15, libsss_certmap-devel 1.16.5-10.el7_9.15, libsss_nss_idmap-devel 1.16.5-10.el7_9.15, libsss_simpleifp-devel 1.16.5-10.el7_9.15, +1 more
    fixed: vendor fix RHSA-2023:0403
  • Red Hat Enterprise Linux 6 sssd, sssd-ad, sssd-ipa, sssd-dbus, sssd-krb5, sssd-ldap, +19 more Red Hat Enterprise Linux 8 sssd, sssd-ad, sssd-idp, sssd-ipa, sssd-kcm, sssd-dbus, +24 more Red Hat Enterprise Linux 9 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

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2149894 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/SSSD/sssd/issues/5135 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • n/a SSSD

Classification

Weakness
  • CWE-90 Improper Neutralization of Special Elements used in an LDAP Query

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.