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 (6)
Core 6
Core References
Release Notes
https://github.com/warp-tech/russh/releases/tag/v0.36.2
Release Notes
https://github.com/warp-tech/russh/releases/tag/v0.37.1
Exploit, Vendor Advisory
https://github.com/warp-tech/russh/security/advisories/GHSA-cqvm-j2r2-hwpg
Scores
CVSS v3
5.9
EPSS
0.0062
EPSS Percentile
44.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-358
CWE-20
CWE-347
Status
published
Products (3)
crates.io/russh
0 - 0.36.2crates.io
russh_project/russh
0.37.0 (2 CPE variants)
russh_project/russh
0.34.0 - 0.36.2
Published
Mar 16, 2023
Tracked Since
Feb 18, 2026