CVE-2026-22185 OpenLDAP LMDB mdb_load Heap Buffer Underflow in readline()

OpenLDAP Lightning Memory-Mapped Database LMDB versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline function of mdbload. When processing malformed input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause...

CVE-2026-22185

OpenLDAP Lightning Memory-Mapped Database LMDB versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline function of mdbload. When processing malformed input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause...

CVE-2026-22185

OpenLDAP Lightning Memory-Mapped Database LMDB versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline function of mdbload. When processing malformed input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause...

OpenLDAP Lightning Memory-Mapped Database 数字错误漏洞

OpenLDAP Lightning Memory-Mapped Database is an OpenLDAP open source high performance database. A numeric error vulnerability exists in OpenLDAP Lightning Memory-Mapped Database, which stems from a heap buffer overflow in the readline function, which could lead to a denial of service and limited...

PT-2026-2159

Name of the Vulnerable Software and Affected Versions OpenLDAP Lightning Memory-Mapped Database LMDB versions up to and including 0.9.14 Description The software contains a heap buffer underflow in the readline function of mdb load. Processing malformed input with an embedded NUL byte can cause a...

Siemens SIMATIC S7-1500 Reachable Assertion (CVE-2020-25710)

A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23. The highest threat from this vulnerability is to system availability. This plugin only works with Tenable.ot. Plea...

Siemens SIMATIC S7-1500 Integer Underflow (Wrap or Wraparound) (CVE-2020-36228)

An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, resulting in denial of service. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

Siemens SIMATIC S7-1500 Out-of-bounds Read (CVE-2020-36223)

A flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter control handling, resulting in denial of service double free and out-of-bounds read. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more...

Siemens SIMATIC S7-1500 Reachable Assertion (CVE-2020-36222)

A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd in the saslAuthzTo validation, resulting in denial of service. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C...

Siemens SIMATIC S7-1500 Missing Encryption of Sensitive Data (CVE-2019-13565)

An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs...

Siemens SIMATIC S7-1500 NULL Pointer Dereference (CVE-2023-2953)

A vulnerability was found in openldap. This security flaw causes a null pointer dereference in bermemallocx function. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if...

Siemens SIMATIC S7-1500 Missing Encryption of Sensitive Data (CVE-2019-13057)

An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN database admin privileges for certain databases but wants to maintain isolation e.g., for multi-tenant deployments, slapd does not properly stop a rootDN from requesting authorization a...

Siemens SIMATIC S7-1500 Reachable Assertion (CVE-2021-27212)

In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service daemon exit via a short timestamp. This is related to schemainit.c and checkTime. This plugin only works...

Siemens SIMATIC S7-1500 Out-of-bounds Write (CVE-2019-19906)

cyrus-sasl aka Cyrus SASL 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. The OpenLDAP crash is ultimately caused by an off-by-one error in sasladdstring in common.c in cyrus-sasl. This plugin only works with Tenable.o...

Siemens SIMATIC S7-1500 Double Free (CVE-2020-36225)

A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the saslAuthzTo processing, resulting in denial of service. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C...

Siemens SIMATIC S7-1500 Reachable Assertion (CVE-2020-25709)

A flaw was found in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed by OpenLDAP's slapd server, to trigger an assertion failure. The highest threat from this vulnerability is to system availability. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 Integer Underflow (Wrap or Wraparound) (CVE-2020-36221)

An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service schemainit.c serialNumberAndIssuerCheck. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 Loop with Unreachable Exit Condition (CVE-2020-36227)

A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancelextop Cancel operation, resulting in denial of service. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C...

Siemens SIMATIC S7-1500 Release of Invalid Pointer or Reference (CVE-2020-36224)

A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the saslAuthzTo processing, resulting in denial of service. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL...

Linux Distros Unpatched Vulnerability : CVE-2022-29155

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability exists in the experimental back-sql backend to slapd, via a SQL statement...