CVE-2021-46823

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Source
https://cve.org/CVERecord?id=CVE-2021-46823
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-46823.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-46823
Aliases
Downstream
Published
2022-06-18T16:15:08.173Z
Modified
2026-06-18T04:07:18.870624917Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
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.

References

Affected packages

Git / github.com/python-ldap/python-ldap

Affected ranges

Type
GIT
Repo
https://github.com/python-ldap/python-ldap
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
47975ee75c84748abfb8bb7456d5cc0a34cfce41
Database specific 
{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.4.0"
        }
    ],
    "cpe": "cpe:2.3:a:python-ldap:python-ldap:*:*:*:*:*:*:*:*"
}

Affected versions

python-ldap-2.*
python-ldap-2.3.0
python-ldap-2.3.10
python-ldap-2.3.11
python-ldap-2.3.13
python-ldap-2.3.3
python-ldap-2.3.4
python-ldap-2.3.7
python-ldap-2.3.8
python-ldap-2.3.9
python-ldap-2.4.10
python-ldap-2.4.12
python-ldap-2.4.13
python-ldap-2.4.20
python-ldap-2.4.21
python-ldap-2.4.23
python-ldap-2.4.26
python-ldap-2.4.27
python-ldap-2.4.28
python-ldap-2.4.29
python-ldap-2.4.30
python-ldap-2.4.31
python-ldap-2.4.32
python-ldap-2.4.33
python-ldap-2.4.35
python-ldap-2.4.36
python-ldap-2.4.37
python-ldap-2.4.38
python-ldap-2.4.39
python-ldap-2.4.4
python-ldap-2.4.40
python-ldap-2.4.41
python-ldap-2.4.42
python-ldap-2.4.43
python-ldap-2.4.44
python-ldap-2.4.45
python-ldap-2.4.6
python-ldap-2.4.7
python-ldap-2.4.9
python-ldap-2.5.0
python-ldap-2.5.1
python-ldap-3.*
python-ldap-3.0.0
python-ldap-3.0.0b1
python-ldap-3.0.0b2
python-ldap-3.0.0b3
python-ldap-3.0.0b4
python-ldap-3.1.0
python-ldap-3.2.0
python-ldap-3.3.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-46823.json"