Severity: moderate
CVSS 3.1: 6.5 (medium) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions:
- Apache MINA SSHD before 2.20.0
- Apache MINA SSHD 3.0.0-M1 before 3.0.0-M6
Description:
Uncontrolled resource consumption in component ssd-scp in Apache MINA SSHD
versions up to 2.19.0 or 3.0.0-M1 to 3.0.0-M5. Apache MINA SSHD is a Java
library for client-side and server-side SSH.
Component sshd-scp of Apache MINA SSHD provides a Java implementation of SCP.
The SCP command protocol is line-oriented with LF-terminated lines. The
protocol handler in sshd-scp did not impose any limit on the length of such
protocol lines. A malicious peer just sending a junk command containing a
never-ending sequence of characters but never a LF would cause the receiver to
allocate memory to store this whole junk command, exhausting memory and
crashing the application with an OutOfMemoryError.
Users are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this
issue by enforcing an upper limit on the length of SCP protocol lines.
Credit:
Ho1aAs <[email protected]> (finder)
References:
https://mina.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-93996
