CVE-2023-21557
published 2023-01-10CVE-2023-21557: Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
PriorityP345critical9.1CVSS 3.1
AVNACLPRNUINSUCHINAH
EPSS
2.03%
78.8th percentile
Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
Affected
38 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_version_1507 | >= 10.0.10240.0 < 10.0.10240.19685 | 10.0.10240.19685 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.5648 | 10.0.14393.5648 |
| microsoft | windows_10_version_1809 | >= 10.0.0 < 10.0.17763.3887 | 10.0.17763.3887 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.3887 | 10.0.17763.3887 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19042.2486 | 10.0.19042.2486 |
| microsoft | windows_10_version_21h2 | >= 10.0.19043.0 < 10.0.19044.2486 | 10.0.19044.2486 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.2486 | 10.0.19045.2486 |
| microsoft | windows_11_version_21h2 | >= 10.0.0 < 10.0.22000.1455 | 10.0.22000.1455 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.1105 | 10.0.22621.1105 |
| microsoft | windows_7 | >= 6.1.0 < 6.1.7601.26321 | 6.1.7601.26321 |
| microsoft | windows_7_service_pack_1 | >= 6.1.0 < 6.1.7601.26321 | 6.1.7601.26321 |
| microsoft | windows_8.1 | >= 6.3.0 < 6.3.9600.20778 | 6.3.9600.20778 |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.7601.0 < 6.1.7601.26321 | 6.1.7601.26321 |
| microsoft | windows_server_2008_service_pack_2 | >= 6.0.6003.0 < 6.0.6003.21872 | 6.0.6003.21872 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.24075 | 6.2.9200.24075 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.20778 | 6.3.9600.20778 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.5648 | 10.0.14393.5648 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.3887 | 10.0.17763.3887 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.1487 | 10.0.20348.1487 |
| msrc | windows_10 | — | — |
| msrc | windows_10_version_1607 | — | — |
| msrc | windows_10_version_1809 | — | — |
| msrc | windows_10_version_20h2 | — | — |
CVSS provenance
nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
vendor_msrc7.5HIGH
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Microsoft
Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
vendor_msrc·2023-01-10·CVSS 7.5
CVE-2023-21557 [HIGH] CWE-190 Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
FAQ: How could an attacker exploit this vulnerability?
An unauthenticated attacker could send a specially crafted request to a vulnerable LDAP server. Successful exploitation could result in bypassing a buffer length check which could be leveraged to achieve information leak.
Windows LDAP - Lightweight Directory Access Protocol: Windows LDAP - Lightweight Directory Access Protocol
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Denial of Service
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5022286
Reference:
GHSA
GHSA-f8jh-h9xw-m9cg: Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
ghsa_unreviewed·2023-01-11
CVE-2023-21557 [HIGH] CWE-400 GHSA-f8jh-h9xw-m9cg: Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-01-10
Published