CVE catalog
CVE-2023-2953
openldap: CVE-2023-2953
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.00% · Oct 25, 2026
A vulnerability was found in OpenLDAP, in ber_memalloc_x() function, leading to a null pointer dereference. This flaw can result in reduced system memory and cause LDAP authentication failures. The impact is primarily a disruption in authentication processes, which may hinder user access or service operations relying on LDAP for authentication. openldap: null pointer dereference in ber_memalloc_x function This vulnerability is rated as a low severity because, it affects only systems where memory exhaustion might occur due to mishandling of users crafted inputs, and it requires an authenticated user to trigger the issue. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | openldap | sid | 2.6.14+dfsg-2 | fixed |
| Debian | openldap | forky | 2.6.14+dfsg-2 | fixed |
| Debian | openldap | trixie | 2.6.10+dfsg-1 | fixed |
| Debian | openldap | bookworm | 2.5.13+dfsg-5 | vulnerable |
| Cpe | openldap | Not reported | Not reported | unknown |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Cpe | macos | Not reported | 13.5 | fixed |
| Cpe | active_iq_unified_manager | Not reported | Not reported | unknown |
| Cpe | clustered_data_ontap | Not reported | Not reported | unknown |
| Cpe | ontap_tools | Not reported | Not reported | unknown |
| Cpe | h300s_firmware | Not reported | Not reported | unknown |
| Cpe | h500s_firmware | Not reported | Not reported | unknown |
| Cpe | h700s_firmware | Not reported | Not reported | unknown |
| Cpe | h410s_firmware | Not reported | Not reported | unknown |
| Cpe | h410c_firmware | Not reported | Not reported | unknown |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.1 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.2 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.3 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.4 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.5 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.6 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.7 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.8 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.9 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.10 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.11 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.11+esm1 | fixed |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.1 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.2 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.3 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.4 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.5 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.6 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.7 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.8 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.9 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.10 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.11 | vulnerable |
| Ubuntu | openldap | pro | 2.4.45+dfsg-1ubuntu1.11+esm1 | fixed |
| Ubuntu | openldap | 20.04 | 2.4.48+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.48+dfsg-1ubuntu2 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.48+dfsg-1ubuntu3 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.48+dfsg-1ubuntu4 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.2 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.3 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.4 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.5 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.6 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.7 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.8 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.9 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.10 | fixed |
| Ubuntu | openldap | 22.04 | 2.5.6+dfsg-1~exp1ubuntu1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.11+dfsg-1~exp1ubuntu1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.11+dfsg-1~exp1ubuntu3 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.11+dfsg-1~exp1ubuntu3.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.12+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.13+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.14+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.14+dfsg-0ubuntu0.22.04.2 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.15+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.16+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.16+dfsg-0ubuntu0.22.04.2 | fixed |
| Ubuntu | openldap | 20.04 | 2.4.48+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.48+dfsg-1ubuntu2 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.48+dfsg-1ubuntu3 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.48+dfsg-1ubuntu4 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.2 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.3 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.4 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.5 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.6 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.7 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.8 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.9 | vulnerable |
| Ubuntu | openldap | 20.04 | 2.4.49+dfsg-2ubuntu1.10 | fixed |
| Ubuntu | openldap | 22.04 | 2.5.6+dfsg-1~exp1ubuntu1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.11+dfsg-1~exp1ubuntu1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.11+dfsg-1~exp1ubuntu3 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.11+dfsg-1~exp1ubuntu3.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.12+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.13+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.14+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.14+dfsg-0ubuntu0.22.04.2 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.15+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.16+dfsg-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | openldap | 22.04 | 2.5.16+dfsg-0ubuntu0.22.04.2 | fixed |
| Suse | openldap2 | linux enterprise micro 5.3 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise micro 5.4 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise module for basesystem 15 sp4 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise module for basesystem 15 sp5 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise module for development tools 15 sp4 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise module for development tools 15 sp5 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise real time 15 sp3 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise micro 5.1 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise micro 5.2 | 2.4.46-150200.14.14.1 | fixed |
| Opensuse | openldap2 | leap micro 5.3 | 2.4.46-150200.14.14.1 | fixed |
| Opensuse | openldap2 | leap 15.4 | 2.4.46-150200.14.14.1 | fixed |
| Opensuse | openldap2 | leap 15.5 | 2.4.46-150200.14.14.1 | fixed |
| Suse | openldap2 | linux enterprise module for legacy 12 | 2.4.41-45.1 | fixed |
| Suse | openldap2 | linux enterprise server for sap applications 12 sp4 | 2.4.41-45.1 | fixed |
| Suse | openldap2 | linux enterprise server for sap applications 12 sp5 | 2.4.41-45.1 | fixed |
| Suse | openldap2 | linux enterprise software development kit 12 sp5 | 2.4.41-22.19.1 | fixed |
| Suse | openldap2 | linux enterprise server 12 sp5 | 2.4.41-22.19.1 | fixed |
| Suse | openldap2 | linux enterprise server for sap applications 12 sp5 | 2.4.41-22.19.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openldap | source | sid | 2.5.16+dfsg-1 | not yet assigned | Not reported | [1036995] |
| Debian | openldap | source | forky | 2.5.16+dfsg-1 | not yet assigned | Not reported | [1036995] |
| Debian | openldap | source | trixie | 2.5.16+dfsg-1 | not yet assigned | Not reported | [1036995] |
| Debian | openldap | source | bookworm | (unfixed) | not yet assigned | Not reported | [1036995] |
| Cpe | macos | cpe | Not reported | 13.5 | Not reported | NVD-CVE-2023-2953 | Not reported |
| Ubuntu | openldap | deb | pro | 2.4.45+dfsg-1ubuntu1.11+esm1 | Not reported | USN-6197-1 | Not reported |
| Ubuntu | openldap | deb | pro | 2.4.45+dfsg-1ubuntu1.11+esm1 | Not reported | UBUNTU-CVE-2023-2953 | Not reported |
| Ubuntu | openldap | deb | 20.04 | 2.4.49+dfsg-2ubuntu1.10 | Not reported | UBUNTU-CVE-2023-2953 | Not reported |
| Ubuntu | openldap | deb | 22.04 | 2.5.16+dfsg-0ubuntu0.22.04.2 | Not reported | UBUNTU-CVE-2023-2953 | Not reported |
| Ubuntu | openldap | deb | 20.04 | 2.4.49+dfsg-2ubuntu1.10 | Not reported | USN-6616-1 | Not reported |
| Ubuntu | openldap | deb | 22.04 | 2.5.16+dfsg-0ubuntu0.22.04.2 | Not reported | USN-6616-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise micro 5.3 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise micro 5.4 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise module for basesystem 15 sp4 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise module for basesystem 15 sp5 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise module for development tools 15 sp4 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise module for development tools 15 sp5 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise real time 15 sp3 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise micro 5.1 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise micro 5.2 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Opensuse | openldap2 | rpm | leap micro 5.3 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Opensuse | openldap2 | rpm | leap 15.4 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Opensuse | openldap2 | rpm | leap 15.5 | 2.4.46-150200.14.14.1 | Not reported | SUSE-SU-2023:2484-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise module for legacy 12 | 2.4.41-45.1 | Not reported | SUSE-SU-2023:2503-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise server for sap applications 12 sp4 | 2.4.41-45.1 | Not reported | SUSE-SU-2023:2503-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise server for sap applications 12 sp5 | 2.4.41-45.1 | Not reported | SUSE-SU-2023:2503-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise software development kit 12 sp5 | 2.4.41-22.19.1 | Not reported | SUSE-SU-2023:2483-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise server 12 sp5 | 2.4.41-22.19.1 | Not reported | SUSE-SU-2023:2483-1 | Not reported |
| Suse | openldap2 | rpm | linux enterprise server for sap applications 12 sp5 | 2.4.41-22.19.1 | Not reported | SUSE-SU-2023:2483-1 | Not reported |
Notes
[bookworm] openldap: Minor issue
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://access.redhat.com/errata/RHSA-2024:4264]
- [https://cert-portal.siemens.com/productcert/csaf/ssa-806742.json]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2024_4264.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2023-2953]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-2953]
- [https://osv.dev/vulnerability/SUSE-SU-2023:2483-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:2484-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:2503-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-2953]
- [https://osv.dev/vulnerability/USN-6197-1]
- [https://osv.dev/vulnerability/USN-6616-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-2953]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-3195.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]