In the Linux kernel, the following vulnerability has been resolved: openvswitch: use RCU protection in ovs_vport_cmd_fill_info() ovs_vport_cmd_fill_info() can be called without RTNL or RCU. Use RCU protection and dev_net_rcu() to avoid potential UAF.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/5828937742af74666192835d657095d95c53dbd0 cve-icon cve-icon
https://git.kernel.org/stable/c/7e01abc34e87abd091e619161a20f54ed4e3e2da cve-icon cve-icon
https://git.kernel.org/stable/c/8ec57509c36c8b9a23e50b7858dda0c520a2d074 cve-icon cve-icon
https://git.kernel.org/stable/c/90b2f49a502fa71090d9f4fe29a2f51fe5dff76d cve-icon cve-icon
https://git.kernel.org/stable/c/a849a10de5e04d798f7f286a2f1ca174719a617a cve-icon cve-icon
https://git.kernel.org/stable/c/a8816b3f1f151373fd30f1996f00480126c8bb11 cve-icon cve-icon
https://git.kernel.org/stable/c/a884f57600e463f69d7b279c4598b865260b62a1 cve-icon cve-icon
https://git.kernel.org/stable/c/e85a25d1a9985645e796039e843d1de581d2de1e cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022604-CVE-2025-21761-218b@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-21761 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-21761 cve-icon
History

Mon, 24 Mar 2025 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Thu, 13 Mar 2025 12:30:00 +0000

Type Values Removed Values Added
References

Tue, 04 Mar 2025 03:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 28 Feb 2025 02:00:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 27 Feb 2025 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Thu, 27 Feb 2025 02:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: openvswitch: use RCU protection in ovs_vport_cmd_fill_info() ovs_vport_cmd_fill_info() can be called without RTNL or RCU. Use RCU protection and dev_net_rcu() to avoid potential UAF.
Title openvswitch: use RCU protection in ovs_vport_cmd_fill_info()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-02-27T02:18:14.054Z

Updated: 2025-03-24T15:39:57.654Z

Reserved: 2024-12-29T08:45:45.761Z

Link: CVE-2025-21761

cve-icon Vulnrichment

Updated: 2025-02-27T17:57:37.453Z

cve-icon NVD

Status : Analyzed

Published: 2025-02-27T03:15:16.757

Modified: 2025-03-24T17:46:44.030

Link: CVE-2025-21761

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-02-27T00:00:00Z

Links: CVE-2025-21761 - Bugzilla