CVE-2020-7692

Name	CVE-2020-7692
Description	PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized. An attacker is able to obtain the authorization code using a malicious app on the client-side and use it to gain authorization to the protected resource. This affects the package com.google.oauth-client:google-oauth-client before 1.31.0.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	988944

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
google-oauth-client-java (PTS)	bullseye	1.28.0-2	fixed
	sid, trixie, bookworm	1.34.1-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
google-oauth-client-java	source	(unstable)	1.28.0-2			988944

Notes

https://snyk.io/vuln/SNYK-JAVA-COMGOOGLEOAUTHCLIENT-575276
https://github.com/googleapis/google-oauth-java-client/issues/469
https://github.com/googleapis/google-oauth-java-client/commit/13433cd7dd06267fc261f0b1d4764f8e3432c824