CVE-2023-4785

Name	CVE-2023-4785
Description	Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.
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	1059281

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
grpc (PTS)	buster	1.16.1-1	vulnerable
	bullseye	1.30.2-3	vulnerable
	bookworm	1.51.1-3	vulnerable
	trixie	1.51.1-4	vulnerable
	sid	1.51.1-4.1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
grpc	source	(unstable)	(unfixed)			1059281

Notes

[bookworm] - grpc <no-dsa> (Minor issue)
[bullseye] - grpc <no-dsa> (Minor issue)
[buster] - grpc <no-dsa> (Minor issue)
https://github.com/grpc/grpc/pull/33656
https://github.com/grpc/grpc/pull/33667
https://github.com/grpc/grpc/pull/33669
https://github.com/grpc/grpc/pull/33670
https://github.com/grpc/grpc/pull/33672