Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What type of information could be disclosed by this vulnerability?
An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.
How could an attacker exploit this vulnerability?
For successful exploitation, a locally authenticated attacker needs to send a specially crafted request to the cryptography provider's vulnerable function.
Security updates
10.0.17763.5329 — https://support.microsoft.com/help/5034127
10.0.20348.2227 — https://support.microsoft.com/help/5034129
10.0.22000.2713 — https://support.microsoft.com/help/5034121
10.0.19044.3930 — https://support.microsoft.com/help/5034122
10.0.22621.3007 — https://support.microsoft.com/help/5034123
10.0.25398.643 — https://support.microsoft.com/help/5034130
10.0.10240.20402 — https://support.microsoft.com/help/5034134
10.0.14393.6614 — https://support.microsoft.com/help/5034119
6.0.6003.22464 — https://support.microsoft.com/help/5034173
6.0.6003.22464 — https://support.microsoft.com/help/5034176
6.1.7601.26910 — https://support.microsoft.com/help/5034169
6.1.7601.26910 — https://support.microsoft.com/help/5034167
6.2.9200.24664 — https://support.microsoft.com/help/5034184
6.3.9600.21765 — https://support.microsoft.com/help/5034171
Vulnerabilities 1
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Medium 5.5
Windows Cryptographic Services Information Disclosure Vulnerability
Windows Cryptographic Services Information Disclosure Vulnerability
Revision history
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#1
Information published.
References
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CVE-2024-21311 Windows Cryptographic Services Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21311
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss