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Debian Linux CVE-2025-38174

| EUVDEUVD-2025-20015 MEDIUM
2025-07-04 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Denial Of Service Linux Debian Canonical Debian Linux
5.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Impact

Service disruption affecting availability. In critical infrastructure, DoS can have cascading effects on dependent systems. With a CVSS score of 5.5 (MEDIUM), this represents a moderate risk.
Exploit ScenarioDerived

An attacker sends specially crafted requests that cause excessive resource consumption (CPU, memory, disk) or trigger a crash in the target application.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

In the Linux kernel, the following vulnerability has been resolved:

thunderbolt: Do not double dequeue a configuration request

Some of our devices crash in tb_cfg_request_dequeue():

general protection fault, probably for non-canonical address 0xdead000000000122

CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65 RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0 Call Trace: <TASK> ? tb_cfg_request_dequeue+0x2d/0xa0 tb_cfg_request_work+0x33/0x80 worker_thread+0x386/0x8f0 kthread+0xed/0x110 ret_from_fork+0x38/0x50 ret_from_fork_asm+0x1b/0x30

The circumstances are unclear, however, the theory is that tb_cfg_request_work() can be scheduled twice for a request: first time via frame.callback from ring_work() and second time from tb_cfg_request(). Both times kworkers will execute tb_cfg_request_dequeue(), which results in double list_del() from the ctl->request_queue (the list poison deference hints at it: 0xdead000000000122).

Do not dequeue requests that don't have TB_CFG_REQUEST_ACTIVE bit set.

Earlier versions of this analysis (1)
v1 Mar 16, 2026 - 02:42 CVSS 5.5

RemediationAI

A vendor patch is available — apply it immediately. Implement rate limiting and input validation. Use timeout mechanisms for resource-intensive operations. Deploy DDoS protection where applicable.

Affected VersionsENISA

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0771bcbe2f6e5d5f263cf466efe571d2754a46da
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <85286e634ebbaf9c0fb1cdf580add2f33fc7628c
Linux patch: 6.16-rc1
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <85286e634ebbaf9c0fb1cdf580add2f33fc7628c
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cdb4feab2f39e75a66239e3a112beced279612a8
Linux 3.17
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <5a057f261539720165d03d85024da2b52e67f63d
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <eb2d5e794fb966b3ef8bde99eb8561446a53509f
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <eb2d5e794fb966b3ef8bde99eb8561446a53509f
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <2f62eda4d974c26bc595425eafd429067541f2c9
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <0771bcbe2f6e5d5f263cf466efe571d2754a46da
Linux patch: 6.6.94
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0f73628e9da1ee39daf5f188190cdbaee5e0c98c
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0a3011d47dbc92a33621861c423cb64833d7fe57
Linux patch: 6.12.33
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <cdb4feab2f39e75a66239e3a112beced279612a8
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e49e994cd83705f7ca30eda1e304abddfd96a37a
Linux patch: 6.1.142
Linux patch: 5.15.186
Linux patch: 5.10.239
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <0f73628e9da1ee39daf5f188190cdbaee5e0c98c
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5a057f261539720165d03d85024da2b52e67f63d
Linux patch: 5.4.295
Linux patch: 6.14.11
Linux patch: 6.15.2
Linux patch: 0
Linux patch: 6.16
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <0a3011d47dbc92a33621861c423cb64833d7fe57
Linux 16603153666d22df544ae9f9b3764fd18da28eeb <e49e994cd83705f7ca30eda1e304abddfd96a37a
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2f62eda4d974c26bc595425eafd429067541f2c9

Affected Packages

euvd linux no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Technical ContextAI · show details

A denial of service vulnerability allows an attacker to disrupt the normal functioning of a system, making it unavailable to legitimate users.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SUSE MEDIUM

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Patch released
Mar 16, 2026 - 02:42 nvd
Patch available
CVE Published
Jul 04, 2025 - 11:15 nvd
MEDIUM 5.5

Executive ViewAI

Why It Matters

CVE-2025-38174 presents moderate security risk rated CVSS 5.5. Exploitation could compromise the security of affected deployments. A patch is available and should be applied during regular vulnerability management.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score
0.0%
Top 91% exploitable
Data Quality
5 sources
Confidence: Medium
EUVD NVD CVE.org EPSS Vendor VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Low

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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Vendor StatusVendor

Debian

linux
Release Status Fixed Version Urgency
bullseye fixed 5.10.244-1 -
bullseye (security) fixed 5.10.251-1 -
bookworm fixed 6.1.147-1 -
bookworm (security) fixed 6.1.164-1 -
trixie fixed 6.12.73-1 -
trixie (security) fixed 6.12.74-2 -
forky fixed 6.19.6-2 -
sid fixed 6.19.8-1 -
(unstable) fixed 6.12.33-1 -
linux-6.1
Release Status Fixed Version Urgency
bullseye (security) fixed 6.1.164-1~deb11u1 -
bullseye fixed 6.1.153-1~deb11u1 -
DLA-4327-1 DLA-4328-1 DSA-5973-1

SUSE

Severity: Medium
Product Status
Container suse/sl-micro/6.0/base-os-container:2.1.3-7.44 Container suse/sl-micro/6.1/base-os-container:2.2.1-5.27 Image SL-Micro Image SL-Micro-Azure Image SL-Micro-BYOS-Azure Image SL-Micro-BYOS-EC2 Image SL-Micro-BYOS-GCE Image SL-Micro-EC2 Image SLE-Micro Image SLE-Micro-Azure Image SLE-Micro-BYOS Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-EC2 Image SLE-Micro-BYOS-GCE Image SLE-Micro-EC2 Image SLE-Micro-GCE Image SUSE-Multi-Linux-Manager-Proxy-BYOS-Azure Image SUSE-Multi-Linux-Manager-Proxy-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-Azure-llc Image SUSE-Multi-Linux-Manager-Server-Azure-ltd Image SUSE-Multi-Linux-Manager-Server-BYOS-Azure Image SUSE-Multi-Linux-Manager-Server-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Server-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-EC2-llc Image SUSE-Multi-Linux-Manager-Server-EC2-ltd Affected
Container suse/sl-micro/6.0/kvm-os-container:2.1.3-6.67 Container suse/sl-micro/6.1/kvm-os-container:2.2.1-5.29 Affected
Container suse/sl-micro/6.0/rt-os-container:2.1.3-7.76 Container suse/sl-micro/6.1/rt-os-container:2.2.1-5.14 Affected
Image SLES-Azure-3P Image SLES-Azure-Basic Image SLES-Azure-Standard Image SLES-BYOS-Azure Image SLES-BYOS-EC2 Image SLES-BYOS-GCE Image SLES-CHOST-BYOS-Aliyun Image SLES-CHOST-BYOS-Azure Image SLES-CHOST-BYOS-EC2 Image SLES-CHOST-BYOS-GCE Image SLES-CHOST-BYOS-GDC Image SLES-CHOST-BYOS-SAP-CCloud Image SLES-EC2 Image SLES-GCE Image SLES-Hardened-BYOS-Azure Image SLES-Hardened-BYOS-EC2 Image SLES-Hardened-BYOS-GCE Image SLES-SAPCAL-Azure Image SLES-SAPCAL-EC2 Image SLES-SAPCAL-GCE Affected
Image SLES-SAP-Azure Image SLES-SAP-Azure-3P Image SLES-SAP-BYOS-Azure Image SLES-SAP-BYOS-EC2 Image SLES-SAP-BYOS-GCE Image SLES-SAP-GCE Affected

References

Advisories & patches
PATCH https://git.kernel.org/stable/c/0771bcbe2f6e5d5f263cf466efe571d2754a46da PATCH https://git.kernel.org/stable/c/0a3011d47dbc92a33621861c423cb64833d7fe57 PATCH https://git.kernel.org/stable/c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c PATCH https://git.kernel.org/stable/c/2f62eda4d974c26bc595425eafd429067541f2c9 PATCH https://git.kernel.org/stable/c/5a057f261539720165d03d85024da2b52e67f63d PATCH https://git.kernel.org/stable/c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c PATCH https://git.kernel.org/stable/c/cdb4feab2f39e75a66239e3a112beced279612a8 PATCH https://git.kernel.org/stable/c/e49e994cd83705f7ca30eda1e304abddfd96a37a PATCH https://git.kernel.org/stable/c/eb2d5e794fb966b3ef8bde99eb8561446a53509f ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-38174 ADVISORY https://security-tracker.debian.org/tracker/dla-4327-1 ADVISORY https://security-tracker.debian.org/tracker/dla-4328-1 ADVISORY https://security-tracker.debian.org/tracker/dsa-5973-1 ADVISORY https://ubuntu.com/security/notices/USN-8126-1 ADVISORY https://vuldb.com/vuln/314841 ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:02853/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:02923/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:02969/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:02996/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:02997/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:03011/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:03023/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:03204/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:20577/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:20586/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:20601/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:20602/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:20994/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:20996/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:21074/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:21139/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:21179/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20309/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20330/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20560/ REF https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html REF https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

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