CVE-2021-46823
MEDIUM6.5EPSS 0.19%ReDoS in LDAP schema parser
發布日:2022/6/19修改日:2026/4/28
描述
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.
受影響套件(3)
- Debian/python-ldapfrom 0
- PyPI/python-ldapfrom 0, < 3.4.0
- PyPI/python-ldapfrom 0, < 3.4.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
參考連結(6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-46823
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-46823
- PATCHhttps://github.com/python-ldap/python-ldap
- WEBhttps://exchange.xforce.ibmcloud.com/vulnerabilities/221507
- WEBhttps://github.com/python-ldap/python-ldap/issues/424
- WEBhttps://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmcm