DescriptiongRPC contains a vulnerability whereby a client can cause a termination of connection between a HTTP2 proxy and a gRPC server: a base64 encoding error for `-bin` suffixed headers will result in a disconnection by the gRPC server, but is typically allowed by HTTP2 proxies. We recommend upgrading beyond the commit inĀ
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
grpc (PTS)buster1.16.1-1vulnerable
sid, trixie, bookworm1.51.1-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bookworm] - grpc <no-dsa> (Minor issue)
[bullseye] - grpc <no-dsa> (Minor issue)
[buster] - grpc <postponed> (Minor issue; request smuggling; recheck whether fixed or introduced by #32309 when CVE description is updated)
CVE description and fix are sensible, but there seem to be confusion:

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