SymCrypt Information Disclosure Vulnerability
CVE-2019-1171

5.6MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1703
Windows 10 Version 1803
Windows Server, Version 1803 (server Core Installation)
Windows 10 Version 1809
Vendor
CVE Published:
14 August 2019

What is CVE-2019-1171?

An information disclosure vulnerability exists in SymCrypt during the OAEP decryption stage. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. The update addresses the vulnerability through a software change to the OAEP decoding operations.

Affected Version(s)

Windows 10 Version 1703 32-bit Systems 10.0.0

Windows 10 Version 1709 for 32-bit Systems 32-bit Systems 10.0.0

Windows 10 Version 1709 x64-based Systems 10.0.0

References

https://portal.msrc.microsoft.com/en-US/security-guidance...
x_refsource_MISC

CVSS V3.1

Score:
5.6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.