sssd: memory leak in the sssd_pac_plugin
Published Oct 29, 2015
6.8
MEDIUMCVSS 2.0
EPSS 3.67%
Description
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.
Affected products
No data.
- 1.10.0
- 1.10.1
- 1.11.0
- 1.11.1
- 1.11.2
- 1.11.3
- 1.11.4
- 1.11.5
- 1.11.6
- 1.11.7
- 1.12.0
- 1.12.1
- 1.12.2
- 1.12.3
- 1.12.4
- 1.12.5
- 1.13.0
No data.
Red Hat Enterprise Linux 6
sssd-0:1.12.4-47.el6_7.4
Fixed · RHSA-2015:2019
Red Hat Enterprise Linux 7
sssd-0:1.13.0-40.el7
Fixed · RHSA-2015:2355
CloudForms Management Engine 5
sssd
Will not fix
Red Hat Enterprise Linux 5
sssd
Will not fix
Red Hat Satellite 6
sssd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | sssd-0:1.12.4-47.el6_7.4 | Fixed | RHSA-2015:2019 |
| Red Hat Enterprise Linux 7 | sssd-0:1.13.0-40.el7 | Fixed | RHSA-2015:2355 |
| CloudForms Management Engine 5 | sssd | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | sssd | Will not fix | n/a |
| Red Hat Satellite 6 | sssd | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.67% (0.03666) | 89.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.67% (0.03666) | 88.17th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.73% (0.02734) | 84.68th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.75% (0.04751) | 81.99th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.73% (0.02734) | 84.99th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.45% (0.01449) | 87.20th | v3 (v2023.03.01) |
| May 8, 2024 | 1.45% (0.01449) | 86.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.45% (0.01449) | 84.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.19% (0.02186) | 80.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.19% (0.02186) | 79.16th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.19% (0.02186) | 57.93th | v2 (v2022.01.01) |
References (16)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169110.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169597.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169613.html vendor-advisoryx_refsource_FEDORA
- http://permalink.gmane.org/gmane.linux.redhat.sssd.user/3422 mailing-listx_refsource_MLISTVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2019.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-2355.html vendor-advisoryx_refsource_REDHAT
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/77529 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1034038 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2015-5292 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1267580 x_refsource_CONFIRMIssue Tracking
- https://fedorahosted.org/sssd/attachment/ticket/2803/0001-Fix-memory-leak-in-sssdpac_verify.patch x_refsource_CONFIRM
- https://fedorahosted.org/sssd/ticket/2803 x_refsource_CONFIRM
- https://fedorahosted.org/sssd/wiki/Releases/Notes-1.13.1 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-5292
- https://www.cve.org/CVERecord?id=CVE-2015-5292
Change history (0)
No recorded changes yet.