CVE-2021-46823

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.18%
Third-Party Advisory ibmcloud.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmcm third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/221507 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-46823?
CVE-2021-46823 has been scored as a medium severity vulnerability.
How to fix CVE-2021-46823?
To fix CVE-2021-46823, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-46823 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-46823 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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