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TI-2015-04448 Aliases CVE-2015-5292GHSA-5f57-m892-gf57

Memory leak in the Privilege Attribute Certificate (PAC) responder plugin…

Priority LOW 36CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
Partial Red Hat: 16 fixed, 2 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.

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.

Why it matters now

EPSS 0.03666 89th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 16 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 17

CPEVersionsRoleVendor
cpe:2.3:a:fedoraproject:sssd:1.10.0:*:*:*:*:*:*:*1.10.0VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.10.1:*:*:*:*:*:*:*1.10.1VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.11.0:*:*:*:*:*:*:*1.11.0VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.11.1:*:*:*:*:*:*:*1.11.1VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.11.2:*:*:*:*:*:*:*1.11.2VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.11.3:*:*:*:*:*:*:*1.11.3VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.11.4:*:*:*:*:*:*:*1.11.4VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.11.5:*:*:*:*:*:*:*1.11.5VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.11.6:*:*:*:*:*:*:*1.11.6VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.11.7:*:*:*:*:*:*:*1.11.7VulnerableFedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.10.0:*:*:*:*:*:*:* Versions 1.10.0 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.10.1:*:*:*:*:*:*:* Versions 1.10.1 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.11.0:*:*:*:*:*:*:* Versions 1.11.0 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.11.1:*:*:*:*:*:*:* Versions 1.11.1 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.11.2:*:*:*:*:*:*:* Versions 1.11.2 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.11.3:*:*:*:*:*:*:* Versions 1.11.3 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.11.4:*:*:*:*:*:*:* Versions 1.11.4 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.11.5:*:*:*:*:*:*:* Versions 1.11.5 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.11.6:*:*:*:*:*:*:* Versions 1.11.6 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.11.7:*:*:*:*:*:*:* Versions 1.11.7 Vulnerable ·Fedoraproject
Show 7 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:fedoraproject:sssd:1.12.0:*:*:*:*:*:*:*1.12.0VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.12.1:*:*:*:*:*:*:*1.12.1VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.12.2:*:*:*:*:*:*:*1.12.2VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.12.3:*:*:*:*:*:*:*1.12.3VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.12.4:*:*:*:*:*:*:*1.12.4VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.12.5:*:*:*:*:*:*:*1.12.5VulnerableFedoraproject
cpe:2.3:a:fedoraproject:sssd:1.13.0:*:*:*:*:*:*:*1.13.0VulnerableFedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.12.0:*:*:*:*:*:*:* Versions 1.12.0 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.12.1:*:*:*:*:*:*:* Versions 1.12.1 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.12.2:*:*:*:*:*:*:* Versions 1.12.2 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.12.3:*:*:*:*:*:*:* Versions 1.12.3 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.12.4:*:*:*:*:*:*:* Versions 1.12.4 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.12.5:*:*:*:*:*:*:* Versions 1.12.5 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fedoraproject:sssd:1.13.0:*:*:*:*:*:*:* Versions 1.13.0 Vulnerable ·Fedoraproject

Remediation

Red Hat 2 advisories

  • RHSA-2015:2355 Released 2015-11-19 · Red Hat rating Low
    sssd security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) libipa_hbac-1.13.0-40.el7, libsss_idmap-1.13.0-40.el7, libsss_nss_idmap-1.13.0-40.el7 +17
    • Red Hat Enterprise Linux Client Optional (v. 7) libipa_hbac-devel-1.13.0-40.el7, libsss_idmap-devel-1.13.0-40.el7, libsss_nss_idmap-devel-1.13.0-40.el7 +4
    • Red Hat Enterprise Linux ComputeNode (v. 7) libipa_hbac-1.13.0-40.el7, libsss_idmap-1.13.0-40.el7, libsss_nss_idmap-1.13.0-40.el7 +17
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libipa_hbac-devel-1.13.0-40.el7, libsss_idmap-devel-1.13.0-40.el7, libsss_nss_idmap-devel-1.13.0-40.el7 +4
    • Red Hat Enterprise Linux Server (v. 7) libipa_hbac-1.13.0-40.el7, libipa_hbac-1.13.0-40.el7.ppc, libsss_idmap-1.13.0-40.el7 +26
    • Red Hat Enterprise Linux Server Optional (v. 7) libipa_hbac-devel-1.13.0-40.el7, libipa_hbac-devel-1.13.0-40.el7.ppc, libsss_idmap-devel-1.13.0-40.el7 +8
    • Red Hat Enterprise Linux Workstation (v. 7) libipa_hbac-1.13.0-40.el7, libsss_idmap-1.13.0-40.el7, libsss_nss_idmap-1.13.0-40.el7 +18
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libipa_hbac-devel-1.13.0-40.el7, libsss_idmap-devel-1.13.0-40.el7, libsss_nss_idmap-devel-1.13.0-40.el7 +3
  • RHSA-2015:2019 Released 2015-11-10 · Red Hat rating Low
    sssd security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) libipa_hbac-1.12.4-47.el6_7.4, libipa_hbac-python-1.12.4-47.el6_7.4, libsss_idmap-1.12.4-47.el6_7.4 +12
    • Red Hat Enterprise Linux Desktop Optional (v. 6) libipa_hbac-devel-1.12.4-47.el6_7.4, libsss_idmap-devel-1.12.4-47.el6_7.4, libsss_nss_idmap-1.12.4-47.el6_7.4 +5
    • Red Hat Enterprise Linux HPC Node (v. 6) libipa_hbac-1.12.4-47.el6_7.4, libipa_hbac-python-1.12.4-47.el6_7.4, libsss_idmap-1.12.4-47.el6_7.4 +12
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) libipa_hbac-devel-1.12.4-47.el6_7.4, libsss_idmap-devel-1.12.4-47.el6_7.4, libsss_nss_idmap-1.12.4-47.el6_7.4 +5
    • Red Hat Enterprise Linux Server (v. 6) libipa_hbac-1.12.4-47.el6_7.4, libipa_hbac-1.12.4-47.el6_7.4.ppc, libipa_hbac-python-1.12.4-47.el6_7.4 +15
    • Red Hat Enterprise Linux Server Optional (v. 6) libipa_hbac-devel-1.12.4-47.el6_7.4, libipa_hbac-devel-1.12.4-47.el6_7.4.ppc, libsss_idmap-devel-1.12.4-47.el6_7.4 +11
    • Red Hat Enterprise Linux Workstation (v. 6) libipa_hbac-1.12.4-47.el6_7.4, libipa_hbac-python-1.12.4-47.el6_7.4, libsss_idmap-1.12.4-47.el6_7.4 +12
    • Red Hat Enterprise Linux Workstation Optional (v. 6) libipa_hbac-devel-1.12.4-47.el6_7.4, libsss_idmap-devel-1.12.4-47.el6_7.4, libsss_nss_idmap-1.12.4-47.el6_7.4 +5

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
CloudForms Management Engine 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2015:2355
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2015:2355
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2015:2355
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2015:2355
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2015:2019
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2015:2019
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2015:2019
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2015:2019
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2015:2019
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2015:2355
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2015:2019
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2015:2355
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2015:2019
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2015:2355
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2015:2019
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2015:2355
Not affected: 1 product
  • Red Hat Satellite 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-5292
  2. 2026-10-03 Alias added: GHSA-5f57-m892-gf57

References

Advisory 6

Other 5

  • TI-2022-03895 sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters CVSS 3.1HIGH 8.8
  • TI-2026-68594 Authorization bypass in SSSD HBAC rules via username collision CVSS 3.1HIGH 8.1
  • TI-2026-68550 Denial of service in sssd responder via connection retry loop CVSS 3.1MEDIUM 5.5
  • TI-2026-68273 Denial of service in SSSD via unprivileged autofs cache invalidation CVSS 3.1MEDIUM 5.5
  • TI-2026-61496 Sssd: sssd: fail-open in ldap ppolicy access check allows continued authorization CVSS 3.1MEDIUM 5.4
  • TI-2026-69019 Race condition in SSSD autofs responder enables denial of service CVSS 3.1MEDIUM 4.7
See all 35 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences