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Fencer Intel
medium 6.8

CVE-2015-5292 json

Memory leak in the Privilege Attribute Certificate (PAC) responder plugin (sssd_pac_plugin.so) in System Security Services Daemon (SSSD) 1.…

published 11y ago modified 4mo ago also EUVD-2015-5269

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.7%
EPSS 3.7% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

Memory leak in the Privilege Attribute Certificate (PAC) responder plugin (sssd_pac_plugin.so) in System Security Services Daemon (SSSD) 1.10 before 1.13.1 allows remote authenticated users to cause a denial of service (memory consumption) via a large number of logins that trigger parsing of PAC blobs during Kerberos authentication.

Patch / fix

  • sssd Debian 14, Debian 13, Debian 12 1.13.1-1

debian advisories DEBIAN-CVE-2015-5292

  • sssd RHEL 7 1.13.0-40.el7
  • sssd-ad RHEL 7 1.13.0-40.el7
  • sssd-ipa RHEL 7 1.13.0-40.el7
  • sssd-dbus RHEL 7 1.13.0-40.el7
  • sssd-krb5 RHEL 7 1.13.0-40.el7
  • sssd-ldap RHEL 7 1.13.0-40.el7
  • python-sss RHEL 7 1.13.0-40.el7
  • sssd-proxy RHEL 7 1.13.0-40.el7

red hat advisories RHSA-2015:2355RHSA-2015:2019

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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-2015-5292 updated cvss 2.1

sssd: memory leak in the sssd_pac_plugin

  • Red Hat CloudForms Management Engine 5 sssd Red Hat Enterprise Linux 5 sssd
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) sssd 1.13.0-40.el7, sssd-ad 1.13.0-40.el7, sssd-ipa 1.13.0-40.el7, sssd-dbus 1.13.0-40.el7, sssd-krb5 1.13.0-40.el7, sssd-ldap 1.13.0-40.el7, +14 more Red Hat Enterprise Linux Client Optional (v. 7) libsss_simpleifp 1.13.0-40.el7, python-libsss_nss_idmap 1.13.0-40.el7 Red Hat Enterprise Linux ComputeNode (v. 7) sssd 1.13.0-40.el7, sssd-ad 1.13.0-40.el7, sssd-ipa 1.13.0-40.el7, sssd-dbus 1.13.0-40.el7, sssd-krb5 1.13.0-40.el7, sssd-ldap 1.13.0-40.el7, +14 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) libsss_simpleifp 1.13.0-40.el7, python-libsss_nss_idmap 1.13.0-40.el7
    fixed: vendor fix RHSA-2015:2355
  • Red Hat Enterprise Linux Desktop (v. 6) sssd 1.12.4-47.el6_7.4, sssd-ad 1.12.4-47.el6_7.4, sssd-ipa 1.12.4-47.el6_7.4, sssd-dbus 1.12.4-47.el6_7.4, sssd-krb5 1.12.4-47.el6_7.4, sssd-ldap 1.12.4-47.el6_7.4, +9 more Red Hat Enterprise Linux Desktop Optional (v. 6) sssd-tools 1.12.4-47.el6_7.4, libsss_nss_idmap 1.12.4-47.el6_7.4, libsss_simpleifp 1.12.4-47.el6_7.4, libsss_nss_idmap-python 1.12.4-47.el6_7.4 Red Hat Enterprise Linux HPC Node (v. 6) sssd 1.12.4-47.el6_7.4, sssd-ad 1.12.4-47.el6_7.4, sssd-ipa 1.12.4-47.el6_7.4, sssd-dbus 1.12.4-47.el6_7.4, sssd-krb5 1.12.4-47.el6_7.4, sssd-ldap 1.12.4-47.el6_7.4, +9 more Red Hat Enterprise Linux HPC Node Optional (v. 6) sssd-tools 1.12.4-47.el6_7.4, libsss_nss_idmap 1.12.4-47.el6_7.4, libsss_simpleifp 1.12.4-47.el6_7.4, libsss_nss_idmap-python 1.12.4-47.el6_7.4 Red Hat Enterprise Linux Server (v. 6) sssd 1.12.4-47.el6_7.4, sssd-ad 1.12.4-47.el6_7.4, sssd-ipa 1.12.4-47.el6_7.4, sssd-dbus 1.12.4-47.el6_7.4, sssd-krb5 1.12.4-47.el6_7.4, sssd-ldap 1.12.4-47.el6_7.4, +9 more
    fixed: vendor fix RHSA-2015:2019
  • Red Hat Enterprise Linux Server (v. 7) sssd 1.13.0-40.el7, sssd-ad 1.13.0-40.el7, sssd-ipa 1.13.0-40.el7, sssd-dbus 1.13.0-40.el7, sssd-krb5 1.13.0-40.el7, sssd-ldap 1.13.0-40.el7, +16 more
    fixed: vendor fix RHSA-2015:2355
  • Red Hat Enterprise Linux Server Optional (v. 6) sssd-tools 1.12.4-47.el6_7.4, libsss_nss_idmap 1.12.4-47.el6_7.4, libsss_simpleifp 1.12.4-47.el6_7.4, libsss_nss_idmap-python 1.12.4-47.el6_7.4
    fixed: vendor fix RHSA-2015:2019
  • Red Hat Enterprise Linux Server Optional (v. 7) python-libsss_nss_idmap 1.13.0-40.el7
    fixed: vendor fix RHSA-2015:2355
  • Red Hat Enterprise Linux Workstation (v. 6) sssd 1.12.4-47.el6_7.4, sssd-ad 1.12.4-47.el6_7.4, sssd-ipa 1.12.4-47.el6_7.4, sssd-dbus 1.12.4-47.el6_7.4, sssd-krb5 1.12.4-47.el6_7.4, sssd-ldap 1.12.4-47.el6_7.4, +9 more
    fixed: vendor fix RHSA-2015:2019
  • Red Hat Enterprise Linux Workstation (v. 7) sssd 1.13.0-40.el7, sssd-ad 1.13.0-40.el7, sssd-ipa 1.13.0-40.el7, sssd-dbus 1.13.0-40.el7, sssd-krb5 1.13.0-40.el7, sssd-ldap 1.13.0-40.el7, +15 more
    fixed: vendor fix RHSA-2015:2355
show 3 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) sssd-tools 1.12.4-47.el6_7.4, libsss_nss_idmap 1.12.4-47.el6_7.4, libsss_simpleifp 1.12.4-47.el6_7.4, libsss_nss_idmap-python 1.12.4-47.el6_7.4
    fixed: vendor fix RHSA-2015:2019
  • Red Hat Enterprise Linux Workstation Optional (v. 7) libsss_simpleifp 1.13.0-40.el7
    fixed: vendor fix RHSA-2015:2355
  • Red Hat Satellite 6 sssd
    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

3.67% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:L/Au:S/C:N/I:N/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

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.