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.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/221507	Third Party Advisory VDB Entry
https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmcm	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:python-ldap:python-ldap:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-06-18 16:15

Updated : 2023-08-08 14:22

NVD link : CVE-2021-46823

Mitre link : CVE-2021-46823

CVE.ORG link : CVE-2021-46823

JSON object : View

Products Affected

python-ldap

python-ldap

CWE

CWE-1333

Inefficient Regular Expression Complexity

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