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{"bugzilla": {"description": "python-ldap: Regular expression denial of service in LDAP schema parser", "id": "2044615", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2044615"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-186", "details": ["python-ldap before 3.4.0 is vulnerable to a denial of service when ldap.schema is used for untrusted schema definitions, because of a regular expression denial of service (ReDoS) flaw in the LDAP schema parser. By sending crafted regex input, a remote authenticated attacker could exploit this vulnerability to cause a denial of service condition.", "A flaw was found in python-ldap. The vulnerability occurs due to a regular expression and leads to a denial of service attack. This flaw allows an attacker to parse LDAP schema definitions from an untrusted source, leading to a crash or code execution."], "mitigation": {"lang": "en:us", "value": "Check input for an excessive amount of backslashes in schemas. More than a dozen backslashes per line are atypical."}, "name": "CVE-2021-46823", "package_state": [{"cpe": "cpe:/a:redhat:ansible_automation_platform", "fix_state": "Affected", "package_name": "python-ldap", "product_name": "Red Hat Ansible Automation Platform 1.2"}, {"cpe": "cpe:/a:redhat:ansible_tower:3", "fix_state": "Affected", "package_name": "python-ldap", "product_name": "Red Hat Ansible Tower 3"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "python-ldap", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "python-ldap", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "python-ldap", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "python-ldap", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Out of support scope", "package_name": "python-ldap3", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}, {"cpe": "cpe:/a:redhat:openstack:16.1", "fix_state": "Not affected", "package_name": "python-ldap3", "product_name": "Red Hat OpenStack Platform 16.1"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "python-ldap3", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Affected", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}], "public_date": "2022-01-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-46823\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-46823"], "threat_severity": "Moderate", "upstream_fix": "python-ldap 3.4.0"}