CVE-2025-26465
March 6, 2025, 5:20 p.m.
6.8
Medium
Description
A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Openbsd |
|
|
| Netapp |
|
|
| Redhat |
|
|
| Debian |
|
|
Weaknesses
CWE-390
Detection of Error Condition Without Action
The product detects a specific error, but takes no actions to handle the error.
*CPE(s)
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | openbsd | openssh | / | / | / | / | / | / | / | / |
| a | openbsd | openssh | 6.8 | p1 | / | / | / | / | / | / |
| a | openbsd | openssh | 9.9 | - | / | / | / | / | / | / |
| a | openbsd | openssh | 9.9 | p1 | / | / | / | / | / | / |
| a | netapp | active_iq_unified_manager | - | / | / | / | / | vmware_vsphere | / | / |
| a | netapp | ontap | 9 | / | / | / | / | / | / | / |
| a | redhat | openshift_container_platform | 4.0 | / | / | / | / | / | / | / |
| o | debian | debian_linux | 11.0 | / | / | / | / | / | / | / |
| o | debian | debian_linux | 12.0 | / | / | / | / | / | / | / |
| o | redhat | enterprise_linux | 9.0 | / | / | / | / | / | / | / |
References
Tags
CVSS Score
CVSS Data
- Attack Vector: NETWORK
- Attack Complexity: HIGH
- Privileges Required: NONE
- Scope: UNCHANGED
- Confidentiality Impact: HIGH
- Integrity Impact: HIGH
- Availability Impact: NONE
View Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Date
- Published: Feb. 18, 2025, 7:15 p.m.
- Last Modified: March 6, 2025, 5:20 p.m.
Status : Analyzed
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
secalert@redhat.com
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.