DEBIAN-CVE-2026-116774
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-116774
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-116774.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-116774
- Upstream
- Published
- 2026-10-27T21:18:05Z
- Modified
- 2026-10-29T09:47:38Z
- Severity
-
- 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- [none]
- Details
-
russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximum_packet_size of zero and passes it into ChannelTx::poll_writable in russh/src/channels/io/tx.rs. The Channel::data, Channel::make_writer, and Channel::into_stream asynchronous write paths then calculate a writable size of zero and remain pending forever because window adjustments cannot satisfy a static zero packet maximum. An authenticated client can strand server writes, and a malicious server can strand client writes, allowing affected tasks, channels, and connections to accumulate without surfacing an error. This issue is fixed in version 0.65.0.
- References
Affected packages
Debian:14 / rust-russh
Package
- Name
- rust-russh
- Purl
- pkg:deb/debian/rust-russh?arch=source&distro=forky