Vulnerability Monitor

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CVE-2015-5292

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.

Security Impact Summary

CVE-2015-5292 is a security vulnerability that . Impacting 1 product from fedoraproject organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-10-29T16:59:00.117

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

8.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-399

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	fedoraproject	sssd	1.10.0	Yes
Application	fedoraproject	sssd	1.10.1	Yes
Application	fedoraproject	sssd	1.11.0	Yes
Application	fedoraproject	sssd	1.11.1	Yes
Application	fedoraproject	sssd	1.11.2	Yes
Application	fedoraproject	sssd	1.11.3	Yes
Application	fedoraproject	sssd	1.11.4	Yes
Application	fedoraproject	sssd	1.11.5	Yes
Application	fedoraproject	sssd	1.11.6	Yes
Application	fedoraproject	sssd	1.11.7	Yes
Application	fedoraproject	sssd	1.12.0	Yes
Application	fedoraproject	sssd	1.12.1	Yes
Application	fedoraproject	sssd	1.12.2	Yes
Application	fedoraproject	sssd	1.12.3	Yes
Application	fedoraproject	sssd	1.12.4	Yes
Application	fedoraproject	sssd	1.12.5	Yes
Application	fedoraproject	sssd	1.13.0	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169110.html ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169597.html ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169613.html ([email protected])
http://permalink.gmane.org/gmane.linux.redhat.sssd.user/3422 Vendor Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2015-2019.html ([email protected])
http://rhn.redhat.com/errata/RHSA-2015-2355.html ([email protected])
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html ([email protected])
http://www.securityfocus.com/bid/77529 ([email protected])
http://www.securitytracker.com/id/1034038 ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1267580 ([email protected])
https://fedorahosted.org/sssd/attachment/ticket/2803/0001-Fix-memory-leak-in-sssdpac_verify.patch ([email protected])
https://fedorahosted.org/sssd/ticket/2803 ([email protected])
https://fedorahosted.org/sssd/wiki/Releases/Notes-1.13.1 ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169110.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169597.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169613.html (af854a3a-2127-422b-91ae-364da2661108)
http://permalink.gmane.org/gmane.linux.redhat.sssd.user/3422 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2015-2019.html (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2015-2355.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/77529 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1034038 (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1267580 (af854a3a-2127-422b-91ae-364da2661108)
https://fedorahosted.org/sssd/attachment/ticket/2803/0001-Fix-memory-leak-in-sssdpac_verify.patch (af854a3a-2127-422b-91ae-364da2661108)
https://fedorahosted.org/sssd/ticket/2803 (af854a3a-2127-422b-91ae-364da2661108)
https://fedorahosted.org/sssd/wiki/Releases/Notes-1.13.1 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For fedoraproject's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.