Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Python-Ldap | Python-Ldap | < 3.4.0 |
Related Weaknesses (CWE)
References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/221507Third Party AdvisoryVDB Entry
- https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/221507Third Party AdvisoryVDB Entry
- https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmThird Party Advisory
FAQ
What is CVE-2021-46823?
CVE-2021-46823 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 sche...
How severe is CVE-2021-46823?
CVE-2021-46823 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-46823?
Check the references section above for vendor advisories and patch information. Affected products include: Python-Ldap Python-Ldap.