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Fencer Vulns
low 3.8

CVE-2018-10852 json

The UNIX pipe which sudo uses to contact SSSD and read the available sudo rules from SSSD has too wide permissions, which means that anyone…

published 2018-06-26 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2921

cvss
3.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

The UNIX pipe which sudo uses to contact SSSD and read the available sudo rules from SSSD has too wide permissions, which means that anyone who can send a message using the same raw protocol that sudo and SSSD use can read the sudo rules available for any user. This affects versions of SSSD before 1.16.3.

Patch / fix

  • fedoraproject sssd 1.16.3
  • sssd Debian 14, Debian 13, Debian 12 1.16.3-1

debian advisories DEBIAN-CVE-2018-10852

  • sssd Ubuntu 18.04 LTS 1.16.1-1ubuntu1.8

ubuntu advisories UBUNTU-CVE-2018-10852

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 1.16.2-13.el7
  • sssd-ad RHEL 7 1.16.2-13.el7
  • sssd-ipa RHEL 7 1.16.2-13.el7
  • sssd-kcm RHEL 7 1.16.2-13.el7
  • sssd-dbus RHEL 7 1.16.2-13.el7
  • sssd-krb5 RHEL 7 1.16.2-13.el7
  • sssd-ldap RHEL 7 1.16.2-13.el7
  • python-sss RHEL 7 1.16.2-13.el7

red hat advisories RHSA-2018:3158

  • sssd SLES for SAP 12 SP4, SLES 12 SP4, SLED 12 SP4 +1 more 1.16.1-4.3.2
  • sssd SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES 12 SP3 +5 more 1.13.4-34.23.1
  • sssd SLE Module for Basesystem 15 1.16.1-3.3.1

suse advisories SUSE-SU-2019:0556-1SUSE-SU-2019:0081-1SUSE-SU-2018:2144-1

  • sssd openSUSE Tumbleweed 2.5.2-1.4

opensuse advisories openSUSE-SU-2024:11408-1

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-2018-10852 updated cvss 3.8

sssd: information leak from the sssd-sudo responder

  • Red Hat Enterprise Linux 5 sssd 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 Satellite 6 sssd
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux Client (v. 7) sssd 1.16.2-13.el7, sssd-ad 1.16.2-13.el7, sssd-ipa 1.16.2-13.el7, sssd-kcm 1.16.2-13.el7, sssd-dbus 1.16.2-13.el7, sssd-krb5 1.16.2-13.el7, +21 more Red Hat Enterprise Linux Client Optional (v. 7) python-libsss_nss_idmap 1.16.2-13.el7 Red Hat Enterprise Linux ComputeNode (v. 7) sssd 1.16.2-13.el7, sssd-ad 1.16.2-13.el7, sssd-ipa 1.16.2-13.el7, sssd-kcm 1.16.2-13.el7, sssd-dbus 1.16.2-13.el7, sssd-krb5 1.16.2-13.el7, +21 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-libsss_nss_idmap 1.16.2-13.el7 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) sssd 1.16.2-13.el7, sssd-ad 1.16.2-13.el7, sssd-ipa 1.16.2-13.el7, sssd-kcm 1.16.2-13.el7, sssd-dbus 1.16.2-13.el7, sssd-krb5 1.16.2-13.el7, +22 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) python-libsss_nss_idmap 1.16.2-13.el7
    +4 more products
    Red Hat Enterprise Linux Server (v. 7) sssd 1.16.2-13.el7, sssd-ad 1.16.2-13.el7, sssd-ipa 1.16.2-13.el7, sssd-kcm 1.16.2-13.el7, sssd-dbus 1.16.2-13.el7, sssd-krb5 1.16.2-13.el7, +22 more Red Hat Enterprise Linux Server Optional (v. 7) python-libsss_nss_idmap 1.16.2-13.el7 Red Hat Enterprise Linux Workstation (v. 7) sssd 1.16.2-13.el7, sssd-ad 1.16.2-13.el7, sssd-ipa 1.16.2-13.el7, sssd-kcm 1.16.2-13.el7, sssd-dbus 1.16.2-13.el7, sssd-krb5 1.16.2-13.el7, +22 more Red Hat Enterprise Linux Workstation Optional (v. 7) sssd-debuginfo 1.16.2-13.el7, libipa_hbac-devel 1.16.2-13.el7, libsss_idmap-devel 1.16.2-13.el7, libsss_certmap-devel 1.16.2-13.el7, libsss_nss_idmap-devel 1.16.2-13.el7, libsss_simpleifp-devel 1.16.2-13.el7, +1 more
    fixed: vendor fix RHSA-2018:3158
  • 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

1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 3.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • [UNKNOWN] sssd

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns 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.