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
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2019-05-30T15:58:10

Updated: 2019-05-30T15:58:10

Reserved: 2019-05-30T00:00:00


Link: CVE-2018-20840

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2019-05-30T16:29:01.323

Modified: 2019-05-31T16:04:32.797


Link: CVE-2018-20840

JSON object: View

cve-icon Redhat Information

No data.

CWE