CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action
First published: Thu May 01 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | ||
| Open vSwitch |
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Reference Links
- https://git.kernel.org/stable/c/1489c195c8eecd262aa6712761ba5288203e28ec
- https://git.kernel.org/stable/c/824a7c2df5127b2402b68a21a265d413e78dcad7
- https://git.kernel.org/stable/c/be80768d4f3b6fd13f421451cc3fee8778aba8bc
- https://git.kernel.org/stable/c/03d7262dd53e8c404da35cc81aaa887fd901f76b
- https://git.kernel.org/stable/c/65d91192aa66f05710cfddf6a14b5a25ee554dba
- https://git.kernel.org/stable/c/54c6957d1123a2032099b9eab51c314800f677ce
- https://git.kernel.org/stable/c/7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd
- https://git.kernel.org/stable/c/a27526e6b48eee9e2d82efff502c4f272f1a91d4
Frequently Asked Questions
What is the severity of CVE-2025-37789?
CVE-2025-37789 has been classified as a medium severity vulnerability due to its potential impact on kernel data integrity.
How do I fix CVE-2025-37789?
To fix CVE-2025-37789, update to the latest version of the Linux kernel or Open vSwitch where the vulnerability has been addressed.
Which versions of software are affected by CVE-2025-37789?
CVE-2025-37789 affects specific versions of the Linux kernel and all versions of Open vSwitch using the vulnerable code.
What components are impacted by CVE-2025-37789?
CVE-2025-37789 specifically impacts the netlink interface in the Linux kernel related to Open vSwitch.
Is CVE-2025-37789 being actively exploited?
As of the current reports, there is no indication that CVE-2025-37789 is actively being exploited in the wild.
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