CVE Details
Basic Information
| Title | Russh is missing an overflow check during channel windows adjust |
|---|---|
| Type | cve |
| Published | 2025-08-05T00:05:20.971Z |
| Modified | 2025-08-05T00:05:20.971Z |
Product Information
| Vendor | Eugeny |
|---|---|
| Product | russh |
| Version | < 0.54.1 |
CVSS Information
| Base Score | 6.5 (MEDIUM) |
|---|---|
| Attack Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
AI Analysis
| AI Description | A vulnerability in Russh, a Rust SSH client and server library, allows a malicious client to cause a server crash due to an integer overflow in the channel window adjustment message. This issue is fixed in version 0.54.1. |
|---|---|
| AI Severity | Medium |
| AI Vendor | Eugeny |
| AI Product | Russh |
| AI Version | < 0.54.1 |
Affected Products
- Eugeny russh < 0.54.1
Additional Information
| CWE List | CWE-190 |
|---|---|
| Source | GitHub_M |
Description
Russh is a Rust SSH client & server library. In versions 0.54.0 and below, the channel window adjust message of the SSH protocol is used to track the free space in the receive buffer of the other side of a channel. The current implementation takes the value from the message and adds it to an internal state value. This can result in an integer overflow. If the Rust code is compiled with overflow checks, it will panic. A malicious client can crash a server. This is fixed in version 0.54.1.