CVE-2021-46823

EUVD-2022-6131
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 73%
Affected Products (NVD)
VendorProductVersion
python-ldappython-ldap
𝑥
< 3.4.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
python-ldap
bookworm
3.4.3-2
fixed
bullseye
no-dsa
buster
no-dsa
sid
3.4.4-1
fixed
stretch
no-dsa
trixie
3.4.4-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python-ldap
bionic
Fixed 3.0.0-1ubuntu0.2
released
focal
Fixed 3.2.0-4ubuntu2.1
released
impish
Fixed 3.2.0-4ubuntu5.1
released
jammy
Fixed 3.2.0-4ubuntu7.1
released
Common Weakness Enumeration
References
https://exchange.xforce.ibmcloud.com/vulnerabilities/221507
https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmcm
https://exchange.xforce.ibmcloud.com/vulnerabilities/221507
https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmcm