CVEvulnerability

CVE-2026-102822

3.7 LOW Published 2026-09-29 Modified 2026-09-29 Official page ↗
Status
Deferred
Published
2026-09-29
Last modified
2026-09-29
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-129

Description

Russh is a Rust SSH client and server library. Prior to 0.63.1, a connection configured to permit mac=none can negotiate it with a MAC-requiring CTR or CBC block cipher because the selection logic validates needs_mac() only when MAC selection fails. A remote peer can then send a packet with a decrypted length of zero, causing russh/src/cipher/mod.rs to shrink the previously read block before indexing buffer.buffer[16..], which panics and terminates the connection task. This issue is fixed in version 0.63.1.

Related

Weakness · CWE (1)

  • CWE-129 Improper Validation of Array Index weakness

References