CVE-2023-28113

medium

Description

russh is a Rust SSH client and server library. Starting in version 0.34.0 and prior to versions 0.36.2 and 0.37.1, Diffie-Hellman key validation is insufficient, which can lead to insecure shared secrets and therefore breaks confidentiality. Connections between a russh client and server or those of a russh peer with some other misbehaving peer are most likely to be problematic. These may vulnerable to eavesdropping. Most other implementations reject such keys, so this is mainly an interoperability issue in such a case. This issue is fixed in versions 0.36.2 and 0.37.1

References

https://github.com/warp-tech/russh/security/advisories/GHSA-cqvm-j2r2-hwpg

https://github.com/warp-tech/russh/releases/tag/v0.37.1

https://github.com/warp-tech/russh/releases/tag/v0.36.2

https://github.com/warp-tech/russh/commit/d831a3716d3719dc76f091fcea9d94bd4ef97c6e

https://github.com/warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs#L78-L81

https://github.com/warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs#L72-L76

Details

Source: Mitre, NVD

Published: 2023-03-16

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5.4

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.9

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00173