Failure to Sanitize Special Element Affecting openssh-keysign package, versions <0:9.9p1-12.0.1.el10_1


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.01% (2nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ORACLE10-OPENSSHKEYSIGN-14528166
  • published19 Dec 2025
  • disclosed6 Oct 2025

Introduced: 6 Oct 2025

CVE-2025-61984  (opens in a new tab)
CWE-159  (opens in a new tab)

How to fix?

Upgrade Oracle:10 openssh-keysign to version 0:9.9p1-12.0.1.el10_1 or higher.
This issue was patched in ELSA-2025-23479.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh-keysign package and not the openssh-keysign package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)

CVSS Base Scores

version 3.1