CVE-2015-5292
medium
CVSS v3
—
CVSS v2
6.8
VIR risk
6.8
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
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-5292
Vendor advisory: secalert@redhat.com — http://permalink.gmane.org/gmane.linux.redhat.sssd.user/3422
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 1.13.1-1 |
| debian | bullseye | fixed | 1.13.1-1 |
| debian | sid | fixed | 1.13.1-1 |
| debian | trixie | 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
Verify integrity in audit chain (admin only). AS-IS.