Vulnerability in Python-Ldap
CVE-2021-46823
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.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
EPSS: 0.017 (75.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Python-ldap
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-46823?
- CVE-2021-46823 is a medium-severity vulnerability in Python-Ldap, classified under Inefficient Regular Expression Complexity. CVSS score: 6.5/10. Published 2022-06-18.
- How severe is CVE-2021-46823?
- Medium severity. CVSS v3 base score is 6.5 out of 10.