A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.
Max CVSS
7.5
EPSS Score
0.41%
Published
2023-05-30
Updated
2023-08-02
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 within an LDAP query. This can occur during an LDAP search operation when the search filter is processed, due to a lack of proper escaping.
Max CVSS
9.8
EPSS Score
1.10%
Published
2022-05-04
Updated
2022-10-06
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 schema_init.c and checkTime.
Max CVSS
7.5
EPSS Score
18.74%
Published
2021-02-14
Updated
2021-09-13
A flaw was discovered in OpenLDAP before 2.4.57 leading in an assertion failure in slapd in the X.509 DN parsing in decode.c ber_next_element, resulting in denial of service.
Max CVSS
7.5
EPSS Score
0.75%
Published
2021-01-26
Updated
2022-04-30
A flaw was discovered in ldap_X509dn2bv in OpenLDAP before 2.4.57 leading to a slapd crash in the X.509 DN parsing in ad_keystring, resulting in denial of service.
Max CVSS
7.5
EPSS Score
4.78%
Published
2021-01-26
Updated
2022-04-13
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.
Max CVSS
7.5
EPSS Score
10.96%
Published
2021-01-26
Updated
2022-04-13
A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.
Max CVSS
7.5
EPSS Score
7.96%
Published
2021-01-26
Updated
2022-04-13
A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash in the saslAuthzTo processing, resulting in denial of service.
Max CVSS
7.5
EPSS Score
0.39%
Published
2021-01-26
Updated
2022-04-13
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.
Max CVSS
7.5
EPSS Score
1.34%
Published
2021-01-26
Updated
2022-04-13
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.
Max CVSS
7.5
EPSS Score
1.34%
Published
2021-01-26
Updated
2022-04-13
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).
Max CVSS
7.5
EPSS Score
1.20%
Published
2021-01-26
Updated
2022-04-13
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.
Max CVSS
7.5
EPSS Score
4.51%
Published
2021-01-26
Updated
2022-04-13
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 (schema_init.c serialNumberAndIssuerCheck).
Max CVSS
7.5
EPSS Score
5.73%
Published
2021-01-26
Updated
2022-04-13
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.
Max CVSS
7.5
EPSS Score
1.47%
Published
2021-05-28
Updated
2021-09-14
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.
Max CVSS
7.5
EPSS Score
0.65%
Published
2021-05-18
Updated
2021-09-14
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.
Max CVSS
7.5
EPSS Score
0.13%
Published
2020-12-08
Updated
2022-10-12
libldap in certain third-party OpenLDAP packages has a certificate-validation flaw when the third-party package is asserting RFC6125 support. It considers CN even when there is a non-matching subjectAltName (SAN). This is fixed in, for example, openldap-2.4.46-10.el8 in Red Hat Enterprise Linux.
Max CVSS
4.2
EPSS Score
0.16%
Published
2020-07-14
Updated
2022-05-12
In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).
Max CVSS
7.5
EPSS Score
8.43%
Published
2020-04-28
Updated
2022-04-29
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. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.
Max CVSS
7.5
EPSS Score
0.16%
Published
2019-07-26
Updated
2022-06-13
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 as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.)
Max CVSS
4.9
EPSS Score
0.15%
Published
2019-07-26
Updated
2022-06-13
contrib/slapd-modules/nops/nops.c in OpenLDAP through 2.4.45, when both the nops module and the memberof overlay are enabled, attempts to free a buffer that was allocated on the stack, which allows remote attackers to cause a denial of service (slapd crash) via a member MODDN operation.
Max CVSS
7.5
EPSS Score
0.41%
Published
2017-12-18
Updated
2022-06-13
slapd in OpenLDAP 2.4.45 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a "kill `cat /pathname`" command, as demonstrated by openldap-initscript.
Max CVSS
4.7
EPSS Score
0.04%
Published
2017-09-05
Updated
2022-06-13
servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0.
Max CVSS
6.5
EPSS Score
91.50%
Published
2017-05-29
Updated
2022-06-13
The ber_get_next function in libraries/liblber/io.c in OpenLDAP 2.4.42 and earlier allows remote attackers to cause a denial of service (reachable assertion and application crash) via crafted BER data, as demonstrated by an attack against slapd.
Max CVSS
5.0
EPSS Score
94.65%
Published
2015-09-11
Updated
2016-12-22
The nss_parse_ciphers function in libraries/libldap/tls_m.c in OpenLDAP does not properly parse OpenSSL-style multi-keyword mode cipher strings, which might cause a weaker than intended cipher to be used and allow remote attackers to have unspecified impact via unknown vectors.
Max CVSS
7.5
EPSS Score
0.29%
Published
2015-12-07
Updated
2023-04-28
59 vulnerabilities found
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