CVE-2020-25692
published 2020-12-08CVE-2020-25692: A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could…
PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
2.18%
80.4th percentile
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | openldap | < openldap 2.4.55+dfsg-1 (bookworm) | openldap 2.4.55+dfsg-1 (bookworm) |
| msrc | cm1_openldap_2.4.50-3_on_cbl_mariner_1.0 | — | — |
| openldap | openldap | < 2.4.55 | 2.4.55 |
| openldap | openldap | — | — |
| openldap | openldap | >= 0 < 2.4.55+dfsg-1 | 2.4.55+dfsg-1 |
| openldap | openldap | >= 0 < 2.4.55+dfsg-1 | 2.4.55+dfsg-1 |
| openldap | openldap | >= 0 < 2.4.55+dfsg-1 | 2.4.55+dfsg-1 |
| openldap | openldap | >= 0 < 2.4.55+dfsg-1 | 2.4.55+dfsg-1 |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
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CISA ICS
Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
cisa_ics·2023-12-14
Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
ICS Advisory
##
Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
Release DateDecember 14, 2023
Alert CodeICSA-23-348-10
As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).
View CSAF
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
- Vulnerabilities: Improper Restriction of XML External Entity Reference, Time-of-check Time-of-use (TOCTOU) Race Condition, Command Injection, Miss
CISA ICS
Hitachi Energy Gateway Station
cisa_ics·2023-02-28·CVSS 7.5
[HIGH] Hitachi Energy Gateway Station
ICS Advisory
##
Hitachi Energy Gateway Station
Release DateFebruary 28, 2023
Alert CodeICSA-23-059-01
## 1. EXECUTIVE SUMMARY
- CVSS v3 7.5
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Hitachi Energy
- Equipment: Gateway Station (GWS)
- Vulnerabilities: NULL Pointer Dereference, Infinite Loop
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could cause affected modules to stop working.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
Hitachi Energy reports these vulnerabilities affect open-source software (OpenLDAP and OpenSSL) used by the following Gateway Station (GWS) versions:
- GWS 2.0.0.0
- GWS 2.1.0.0
- GWS 2.2.0.0
- GWS 2.3.0.0
- GWS 2.4.0.0
- GWS 3.0.0.0
- GWS 3.1.0.0
- GWS 3.2.0.0 and earlier
CISA ICS
Hitachi Energy MicroSCADA Pro X SYS600
cisa_ics·2022-09-29·CVSS 7.5
[HIGH] Hitachi Energy MicroSCADA Pro X SYS600
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Hitachi Energy MicroSCADA Pro X SYS600
Last RevisedSeptember 29, 2022
Alert CodeICSA-22-272-02
## 1. EXECUTIVE SUMMARY
- CVSS v3 7.5
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Hitachi Energy
- Equipment: MicroSCADA Pro/X SYS600
- Vulnerability: NULL Pointer Dereference, Infinite Loop
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could cause the affected modules in the product to stop working.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
Hitachi Energy reports this vulnerability affects the following SCADA products used
Microsoft
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55 during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sendi
vendor_msrc·2020-12-08·CVSS 7.5
CVE-2020-25692 [HIGH] CWE-476 A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55 during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sendi
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55 during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request causing a Denial of Service.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impa
Ubuntu
OpenLDAP vulnerability
vendor_ubuntu·2020-11-11
CVE-2020-25692 OpenLDAP vulnerability
Title: OpenLDAP vulnerability
Summary: OpenLDAP could be made to crash or run programs if it received
specially crafted network traffic.
USN-4622-1 fixed a vulnerability in OpenLDAP. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that OpenLDAP incorrectly handled certain network
packets. A remote attacker could use this issue to cause OpenLDAP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
OpenLDAP vulnerability
vendor_ubuntu·2020-11-09
CVE-2020-25692 OpenLDAP vulnerability
Title: OpenLDAP vulnerability
Summary: OpenLDAP could be made to crash or run programs if it received
specially crafted network traffic.
It was discovered that OpenLDAP incorrectly handled certain network
packets. A remote attacker could use this issue to cause OpenLDAP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
openldap: NULL pointer dereference for unauthenticated packet in slapd
vendor_redhat·2020-10-19·CVSS 7.5
CVE-2020-25692 [HIGH] CWE-476 openldap: NULL pointer dereference for unauthenticated packet in slapd
openldap: NULL pointer dereference for unauthenticated packet in slapd
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
A NULL pointer dereference flaw was found in the OpenLDAP server, during a request for renaming RDNs. This flaw allows a remote, unauthenticated attacker to crash the slapd process by sending a specially crafted request, causing a denial of service. The highest threat from this vulnerability is to system availability.
Statement: This vulnerability affects the server side only. As a result, OpenLDAP client components, such as the component shipped in Red Hat En
Debian
CVE-2020-25692: openldap - A NULL pointer dereference was found in OpenLDAP server and was fixed in openlda...
vendor_debian·2020·CVSS 7.5
CVE-2020-25692 [HIGH] CVE-2020-25692: openldap - A NULL pointer dereference was found in OpenLDAP server and was fixed in openlda...
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
Scope: local
bookworm: resolved (fixed in 2.4.55+dfsg-1)
bullseye: resolved (fixed in 2.4.55+dfsg-1)
forky: resolved (fixed in 2.4.55+dfsg-1)
sid: resolved (fixed in 2.4.55+dfsg-1)
trixie: resolved (fixed in 2.4.55+dfsg-1)
GHSA
GHSA-73cr-r2gx-wgq6: A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2
ghsa_unreviewed·2022-05-24
CVE-2020-25692 [HIGH] CWE-476 GHSA-73cr-r2gx-wgq6: A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
OSV
CVE-2020-25692: A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2
osv·2020-12-08·CVSS 7.5
CVE-2020-25692 [HIGH] CVE-2020-25692: A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2
A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
No detection rules found.
No public exploits indexed.
2020-12-08
Published