Description
Double free vulnerability in the get_vrFilter function in servers/slapd/filter.c in OpenLDAP 2.4.40 allows remote attackers to cause a denial of service (crash) via a crafted search query with a matched values control.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openldap | 2.4.40-4 | — |
| Debian 13 | openldap | 2.4.40-4 | — |
| Debian 12 | openldap | 2.4.40-4 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | openldap2 +1 | 2.4.39-16.1 | SUSE-SU-2015:1077-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | openldap2 +1 | 2.4.39-16.1 | SUSE-SU-2015:1077-1 |
Advisories 1
- SUSE-SU-2015:1077-1 Security update for openldap2 SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776991
- https://support.apple.com/HT204659
- openldap-cve20151546-dos(100938) vdb-entry
- APPLE-SA-2015-04-08-2 vendor-advisory
- openSUSE-SU-2015:1325 vendor-advisory
- MDVSA-2015:073 vendor-advisory
- http://www.openldap.org/its/?findid=8046
- http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commit%3Bh=2f1a2dd329b91afe561cd06b872d09630d4edb6a
- 62787 third-party-advisory
- [oss-security] 20150207 Re: CVE request: two OpenLDAP DoS issues mailing-list