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    CVE-2015-1545

    The deref_parseCtrl function in servers/slapd/overlays/deref.c in OpenLDAP 2.4.13 through 2.4.40 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an empty attribute list in a deref control in a search request.

    Published:Feb 3, 2015
    Last Modified:Apr 12, 2025
    EPS:Feb 12, 2015
    EPSS Score:0.72587
    CVSS Score:5

    Affected Products

    Vendor
    Openldap
    Product
    Openldap

    Exploits

    http://www.openldap.org/its/?findid=8027http://www.openldap.org/its/?findid=8027

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-22185 (CVSS 4.6) — OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit 8e1fda8,…
    CVE-2023-2953 (CVSS 7.5) — A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x(…
    CVE-2022-29155 (CVSS 9.8) — In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability exists in the experimental…
    CVE-2021-27212 (CVSS 7.5) — In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuer…
    CVE-2020-36221 (CVSS 7.5) — An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exac…
    CVE-2020-36222 (CVSS 7.5) — A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd in the saslAuthzTo va…
    CVE-2020-36224 (CVSS 7.5) — A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the sasl…
    CVE-2020-36225 (CVSS 7.5) — A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the saslAuthzTo pr…
    CVE-2020-36226 (CVSS 7.5) — A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash in t…
    CVE-2020-36228 (CVSS 7.5) — An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List…

    References

    http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
    http://lists.opensuse.org/opensuse-updates/2015-07/msg00069.html
    http://seclists.org/fulldisclosure/2019/Dec/26
    http://secunia.com/advisories/62787
    http://www.debian.org/security/2015/dsa-3209
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:073
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:074
    http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commit%3Bh=c32e74763f77675b9e144126e375977ed6dc562c
    http://www.openldap.org/its/?findid=8027
    http://www.openwall.com/lists/oss-security/2015/02/07/3
    http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
    http://www.securityfocus.com/bid/72519
    http://www.securitytracker.com/id/1032399
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776988
    https://exchange.xforce.ibmcloud.com/vulnerabilities/100937
    https://seclists.org/bugtraq/2019/Dec/23
    https://support.apple.com/HT204659
    https://support.apple.com/kb/HT210788
    http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
    http://lists.opensuse.org/opensuse-updates/2015-07/msg00069.html
    http://seclists.org/fulldisclosure/2019/Dec/26
    http://secunia.com/advisories/62787
    http://www.debian.org/security/2015/dsa-3209
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:073
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:074
    http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commit%3Bh=c32e74763f77675b9e144126e375977ed6dc562c
    http://www.openldap.org/its/?findid=8027
    http://www.openwall.com/lists/oss-security/2015/02/07/3
    http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
    http://www.securityfocus.com/bid/72519
    http://www.securitytracker.com/id/1032399
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776988
    https://exchange.xforce.ibmcloud.com/vulnerabilities/100937
    https://seclists.org/bugtraq/2019/Dec/23
    https://support.apple.com/HT204659
    https://support.apple.com/kb/HT210788

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High