CVE-2015-5292
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 4 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.13.1-1 |
| sid | Fixed | 1.13.1-1 |
| bullseye | Fixed | 1.13.1-1 |
| bookworm | Fixed | 1.13.1-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| fedoraproject | sssd | 1.10.0 | |
| fedoraproject | sssd | 1.10.1 | |
| fedoraproject | sssd | 1.11.0 | |
| fedoraproject | sssd | 1.11.1 | |
| fedoraproject | sssd | 1.11.2 | |
| fedoraproject | sssd | 1.11.3 | |
| fedoraproject | sssd | 1.11.4 | |
| fedoraproject | sssd | 1.11.5 | |
| fedoraproject | sssd | 1.11.6 | |
| fedoraproject | sssd | 1.11.7 | |
| fedoraproject | sssd | 1.12.0 | |
| fedoraproject | sssd | 1.12.1 | |
| fedoraproject | sssd | 1.12.2 | |
| fedoraproject | sssd | 1.12.3 | |
| fedoraproject | sssd | 1.12.4 | |
| fedoraproject | sssd | 1.12.5 | |
| fedoraproject | sssd | 1.13.0 | |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169110.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169597.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169613.html
- http://permalink.gmane.org/gmane.linux.redhat.sssd.user/3422
- http://rhn.redhat.com/errata/RHSA-2015-2019.html
- http://rhn.redhat.com/errata/RHSA-2015-2355.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/77529
- http://www.securitytracker.com/id/1034038
- https://bugzilla.redhat.com/show_bug.cgi?id=1267580
- https://fedorahosted.org/sssd/attachment/ticket/2803/0001-Fix-memory-leak-in-sssdpac_verify.patch
- https://fedorahosted.org/sssd/ticket/2803
- https://fedorahosted.org/sssd/wiki/Releases/Notes-1.13.1
- https://security-tracker.debian.org/tracker/CVE-2015-5292
CWEs
CWE-399
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.