CVE-2018-20840

An unhandled exception vulnerability exists during Google Sign-In with Google API C++ Client before 2019-04-10. It potentially causes an outage of third-party services that were not designed to recover from exceptions. On the client, ID token handling can cause an unhandled exception because of misinterpretation of an integer as a string, resulting in denial-of-service and then other users can no longer login/sign-in to the affected third-party service. Once this third-party service uses Google Sign-In with google-api-cpp-client, a malicious user can trigger this client/auth/oauth2_authorization.cc vulnerability by requesting the client to receive the ID token from a Google authentication server.
References
Link Resource
https://github.com/google/google-api-cpp-client/issues/57 Issue Tracking Exploit Third Party Advisory
https://github.com/google/google-api-cpp-client/pull/58 Issue Tracking Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:google:api_c\+\+_client:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-05-30 16:29

Updated : 2024-02-28 17:08


NVD link : CVE-2018-20840

Mitre link : CVE-2018-20840

CVE.ORG link : CVE-2018-20840


JSON object : View

Products Affected

google

  • api_c\+\+_client
CWE
CWE-754

Improper Check for Unusual or Exceptional Conditions