Description
A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | openldap | openldap-2.4 | — |
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 | 2.5.16+dfsg-1 | — |
| Debian 13 | openldap | 2.5.16+dfsg-1 | — |
| Debian 12 | openldap | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | openldap | 2.5.16+dfsg-0ubuntu0.22.04.2 | USN-6616-1 |
| Ubuntu 20.04 LTS | openldap | 2.4.49+dfsg-2ubuntu1.10 | USN-6616-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | openldap | 2.4.45+dfsg-1ubuntu1.11+esm1 | USN-6197-1 |
| Ubuntu Pro 16.04 LTS | openldap | 2.4.42+dfsg-2ubuntu3.13+esm2 | USN-6197-1 |
| Ubuntu Pro 14.04 LTS | openldap | 2.4.31-1+nmu2ubuntu8.5+esm6 | USN-6197-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | openldap +3 | 2.4.46-19.el8_10 | RHSA-2024:4264 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | openldap +3 | 2.6.2-3.el9_2.1 | RHSA-2025:8181 |
| RHEL 9.0 E4S | openldap +3 | 2.6.2-1.el9_0.1 | RHSA-2025:8176 |
| RHEL 8.8 EUS | openldap +3 | 2.4.46-20.el8_8 | RHSA-2024:6033 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | openldap +3 | 2.4.46-19.el8_10 | ALSA-2024:4264 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | openldap | 2.4.46-19.el8_10 | RLSA-2024:4264 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
| SLES 15 SP4 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
| SLES 12 SP5 | openldap2 | 2.4.41-22.19.1 | SUSE-SU-2023:2483-1 |
| SLES 12 | openldap2 | 2.4.41-45.1 | SUSE-SU-2023:2503-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | openldap2 | 2.4.41-22.19.1 | SUSE-SU-2023:2503-1, SUSE-SU-2023:2483-1 |
| SLES for SAP 12 SP4 | openldap2 | 2.4.41-45.1 | SUSE-SU-2023:2503-1 |
| SLE Real Time 15 SP3 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
| SLE Micro 5.4 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
| SLE Micro 5.3 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
| SLE Micro 5.2 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
| SLE Micro 5.1 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
| openSUSE Leap 15.4 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | openldap2 | 2.4.46-150200.14.14.1 | SUSE-SU-2023:2484-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | openldap +4 | 2.4.57-6.amzn2023.0.5 | ALAS2023-2023-219 |
| Amazon Linux 2 | openldap +4 | 2.4.44-25.amzn2.0.6 | ALAS2-2023-2095 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | openldap | 2.4.57-9 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | openldap +3 | 2.4.46-19.el8_10 | ELSA-2024-4264 |
Advisories 23
- ALSA-2024:4264 Low: openldap security update AlmaLinux Security Advisories · Oct 29, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- ICSA-25-259-02 Hitachi Energy RTU500 Series CISA ICS & IT advisories · Oct 8, 2026
- WID-SEC-2024-3195 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- USN-6197-1 openldap vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- RHSA-2025:8181 Red Hat Security Advisory: openldap security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:6033 Red Hat Security Advisory: openldap security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:4264 Red Hat Security Advisory: openldap security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2025:8176 Red Hat Security Advisory: openldap security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6616-1 openldap vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2023:2484-1 Security update for openldap2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2503-1 Security update for openldap2 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1313 OpenLDAP: Schwachstelle ermöglicht nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 6, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- RLSA-2024:4264 Low: openldap security update Rocky Linux Security Advisories · May 7, 2025
- SUSE-SU-2023:2483-1 Security update for openldap2 SUSE / openSUSE Security Updates · May 2, 2025
- NCSC-2024-0414 Kwetsbaarheden verholpen in Oracle Communications NCSC-NL (Netherlands) · Oct 17, 2024
- ELSA-2024-4264 Low: openldap security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 2, 2024
- SSA-806742 SSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.4 Siemens ProductCERT · Feb 13, 2024
- ICSA-24-046-11 Siemens SCALANCE XCM-/XRM-300 CISA ICS & IT advisories · Feb 13, 2024
- WID-SEC-2023-1880 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 11, 2023
- ALAS2-2023-2095 Moderate: openldap security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 29, 2023
- ALAS2023-2023-219 Moderate: openldap security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 27, 2023
References
- https://bugs.openldap.org/show_bug.cgi?id=9904
- https://access.redhat.com/security/cve/CVE-2023-2953
- https://security.netapp.com/advisory/ntap-20230703-0005/
- https://support.apple.com/kb/HT213843
- https://support.apple.com/kb/HT213844
- https://support.apple.com/kb/HT213845
- 20230725 APPLE-SA-2023-07-24-6 macOS Big Sur 11.7.9 mailing-list
- 20230725 APPLE-SA-2023-07-24-5 macOS Monterey 12.6.8 mailing-list
- 20230725 APPLE-SA-2023-07-24-4 macOS Ventura 13.5 mailing-list