CVE-2025-54804 (GCVE-0-2025-54804)

Vulnerability from cvelistv5 – Published: 2025-08-05 00:05 – Updated: 2025-08-05 14:44
VLAI?
Title
Russh is missing an overflow check during channel windows adjust
Summary
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 a 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.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
Vendor Product Version
Eugeny russh Affected: < 0.54.1
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