CVE-2025-37998

openvswitch: Fix unsafe attribute parsing in output_userspace()

MEDIUM
5.5
CVSS Score
Published: May 29, 2025 at 01:15 PM UTC
Updated: October 15, 2026 at 10:18 PM UTC
2 products affected across 2 vendorsLinux KernelDebian Linux

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fix unsafe attribute parsing in output_userspace() This patch replaces the manual Netlink attribute iteration in output_userspace() with nla_for_each_nested(), which ensures that only well-formed attributes are processed.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.3 ≤ v < 5.4.2945.11 ≤ v < 5.15.1835.16 ≤ v < 6.1.1395.5 ≤ v < 5.10.2386.13 ≤ v < 6.14.76.2 ≤ v < 6.6.916.7 ≤ v < 6.12.296.156.15 rc16.15 rc26.15 rc36.15 rc46.15 rc5ccb1352e76cff0524e7ccb2074826a092dd13016
Vendor states this is fixed in 0236742bd959332181c1fcc41a05b7b709180501 (fixed)
Vendor states this is fixed in 06b4f110c79716c181a8c5da007c259807840232 (fixed)
Vendor states this is fixed in 47f7f00cf2fa3137d5c0416ef1a71bdf77901395 (fixed)
Vendor states this is fixed in 4fa672cbce9c86c3efb8621df1ae580d47813430 (fixed)
Vendor states this is fixed in 6712dc21506738f5f22b4f68b7c0d9e0df819dbd (fixed)
Vendor states this is fixed in 6beb6835c1fbb3f676aebb51a5fee6b77fed9308 (fixed)
Vendor states this is fixed in bca8df998cce1fead8cbc69144862eadc2e34c87 (fixed)
Vendor states this is fixed in ec334aaab74705cc515205e1da3cb369fdfd93cd (fixed)
Vendor states this is fixed in 3.3 (unaffected)
Vendor states this is fixed in 5.10.238 (unaffected)
Vendor states this is fixed in 5.15.183 (unaffected)
Vendor states this is fixed in 5.4.294 (unaffected)
Vendor states this is fixed in 6.1.139 (unaffected)
Vendor states this is fixed in 6.12.29 (unaffected)
Vendor states this is fixed in 6.14.7 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.6.91 (unaffected)

References (11)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0236742bd959332181c1fcc41a05b7b709180501
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/06b4f110c79716c181a8c5da007c259807840232
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/47f7f00cf2fa3137d5c0416ef1a71bdf77901395
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4fa672cbce9c86c3efb8621df1ae580d47813430
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6712dc21506738f5f22b4f68b7c0d9e0df819dbd
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6beb6835c1fbb3f676aebb51a5fee6b77fed9308
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bca8df998cce1fead8cbc69144862eadc2e34c87
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ec334aaab74705cc515205e1da3cb369fdfd93cd

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card