Home/CVE/A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function
CVE

CVE-2023-2953

A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function

A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.

HIGH · CVSS 7.5 EPSS 0.01419
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
CWE-476NULL Pointer Dereference
CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

13
openldapall versions
redhat enterprise linuxall versions
apple macos>= 11.0 and < 11.7.9
apple macos>= 12.0 and < 12.6.8
apple macos>= 13.0 and < 13.5
netapp active iq unified managerall versions
netapp clustered data ontapall versions
netapp ontap toolsall versions
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 May 2023 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

17
msrcCVE-2023-2953
suse-csafopenSUSE-SU-2024:13012-1
siemens-csafSSA-806742
usnUSN-6616-1
siemens-csafSSA-398330
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2023/Jul/47Mailing List
http://seclists.org/fulldisclosure/2023/Jul/48Mailing List
http://seclists.org/fulldisclosure/2023/Jul/52Mailing List
https://access.redhat.com/security/cve/CVE-2023-2953Third Party Advisory
https://bugs.openldap.org/show_bug.cgi?id=9904Issue TrackingVendor Advisory
https://security.netapp.com/advisory/ntap-20230703-0005/Third Party Advisory
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