CVE-2025-38727: Software Security Vulnerability Vulnerability

MODERATE

Advisory Identifier: GHSA-5j63-8q43-chww

CVSS 5.5

Published 2025-09-05

Advisory Summary

CVE-2025-38727 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.. Remediation is available in the latest vendor maintenance releases.

CVE-2025-38727 at a Glance

CVE Identifier CVE-2025-38727

GHSA Identifier GHSA-5j63-8q43-chww

Severity MODERATE

CVSS v3.1 Base Score 5.5

CWE Classification CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

Affected Product Software

Package Ecosystem Maven

Published Date 2025-09-05

Last Updated 2026-10-15

Security Impact

CVSS: 5.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Local (AV:L)

Attack Complexity Low (AC:L)

Privileges Required Low (PR:L)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality None (C:N)

Integrity None (I:N)

Availability High (A:H)

How to Fix CVE-2025-38727

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2025-38727, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop'), where the product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: netlink: avoid infinite retry looping in netlink_unicast() netlink_attachskb() checks for the socket's read memory allocation constraints. Firstly, it has: rmem < READ_ONCE(sk->sk_rcvbuf) to check if the just increased rmem value fits into the socket's receive buffer. If not, it proceeds and tries to wait for the memory under: rmem + skb->truesize > READ_ONCE(sk->sk_rcvbuf) The checks don't cover the case when skb->truesize + sk->sk_rmem_alloc is equal to sk->sk_rcvbuf. Thus the function neither successfully accepts these conditions, nor manages to reschedule the task - and is called in retry loop for indefinite time which is caught as: rcu: INFO: rcu_sched self-detected stall on CPU rcu: 0-....: (25999 ticks this GP) idle=ef2/1/0x4000000000000000 softirq=262269/262269 fqs=6212 (t=26000 jiffies g=230833 q=259957) NMI backtrace for cpu 0 CPU: 0 PID: 22 Comm: kauditd Not tainted 5.10.240 #68 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-4.fc42 04/01/2014 Call Trace: <IRQ> dump_stack lib/dump_stack.c:120 nmi_cpu_backtrace.cold lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace lib/nmi_backtrace.c:62 rcu_dump_cpu_stacks kernel/rcu/tree_stall.h:335 rcu_sched_clock_irq.cold kernel/rcu/tree.c:2590 update_process_times kernel/time/timer.c:1953 tick_sched_handle kernel/time/tick-sched.c:227 tick_sched_timer kernel/time/tick-sched.c:1399 __hrtimer_run_queues kernel/time/hrtimer.c:1652 hrtimer_interrupt kernel/time/hrtimer.c:1717 __sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1113 asm_call_irq_on_stack arch/x86/entry/entry_64.S:808 </IRQ> netlink_attachskb net/netlink/af_netlink.c:1234 netlink_unicast net/netlink/af_netlink.c:1349 kauditd_send_queue kernel/audit.c:776 kauditd_thread kernel/audit.c:897 kthread kernel/kthread.c:328 ret_from_fork arch/x86/entry/entry_64.S:304 Restore the original behavior of the check which commit in Fixes accidentally missed when restructuring the code. Found by Linux Verification Center (linuxtesting.org).

References

NVD — CVE-2025-38727 NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-38727

cert-portal.siemens.com/productcert/html/ss... WEB

https://cert-portal.siemens.com/productcert/html/ssa-019113.html

cert-portal.siemens.com/productcert/html/ss... WEB

https://cert-portal.siemens.com/productcert/html/ssa-032379.html

cert-portal.siemens.com/productcert/html/ss... WEB

https://cert-portal.siemens.com/productcert/html/ssa-082556.html

cert-portal.siemens.com/productcert/html/ss... WEB

https://cert-portal.siemens.com/productcert/html/ssa-457936.html

git.kernel.org/stable/c/346c820ef5... WEB

https://git.kernel.org/stable/c/346c820ef5135cf062fa3473da955ef8c5fb6929

git.kernel.org/stable/c/44ddd7b1ae... WEB

https://git.kernel.org/stable/c/44ddd7b1ae0b7edb2c832eb16798c827a05e58f0

git.kernel.org/stable/c/47d49fd07f... WEB

https://git.kernel.org/stable/c/47d49fd07f86d1f55ea1083287303d237e9e0922

git.kernel.org/stable/c/6bee383ff8... WEB

https://git.kernel.org/stable/c/6bee383ff83352a693d03efdf27cdd80742f71b2

git.kernel.org/stable/c/759dfc7d04... WEB

https://git.kernel.org/stable/c/759dfc7d04bab1b0b86113f1164dc1fec192b859

git.kernel.org/stable/c/78fcd69d55... WEB

https://git.kernel.org/stable/c/78fcd69d55c5f11d7694c547eca767a1cfd38ec4

git.kernel.org/stable/c/d42b71a34f... WEB

https://git.kernel.org/stable/c/d42b71a34f6b8a2d5c53df81169b03b8d8b5cf4e

git.kernel.org/stable/c/e8edc7de68... WEB

https://git.kernel.org/stable/c/e8edc7de688791a337c068693f22e8d8b869df71

git.kernel.org/stable/c/f324959ad4... WEB

https://git.kernel.org/stable/c/f324959ad47e62e3cadaffa65d3cff790fb48529

lists.debian.org/debian-lts-announce... WEB

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

lists.debian.org/debian-lts-announce... WEB

https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2025-38727?

CVE-2025-38727 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop').

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2025-38727?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What is the CVSS score of CVE-2025-38727?

CVE-2025-38727 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

What CWE is associated with CVE-2025-38727?

CVE-2025-38727 is classified under CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') (The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.).

How can I check Maven dependencies for CVE-2025-38727?

Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

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  "published" : "2025-09-05T18:31:17Z",
  "aliases" : [ "CVE-2025-38727" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: avoid infinite retry looping in netlink_unicast()\n\nnetlink_attachskb() checks for the socket's read memory allocation\nconstraints. Firstly, it has:\n\n  rmem < READ_ONCE(sk->sk_rcvbuf)\n\nto check if the just increased rmem value fits into the socket's receive\nbuffer. If not, it proceeds and tries to wait for the memory under:\n\n  rmem + skb->truesize > READ_ONCE(sk->sk_rcvbuf)\n\nThe checks don't cover the case when skb->truesize + sk->sk_rmem_alloc is\nequal to sk->sk_rcvbuf. Thus the function neither successfully accepts\nthese conditions, nor manages to reschedule the task - and is called in\nretry loop for indefinite time which is caught as:\n\n  rcu: INFO: rcu_sched self-detected stall on CPU\n  rcu:     0-....: (25999 ticks this GP) idle=ef2/1/0x4000000000000000 softirq=262269/262269 fqs=6212\n  (t=26000 jiffies g=230833 q=259957)\n  NMI backtrace for cpu 0\n  CPU: 0 PID: 22 Comm: kauditd Not tainted 5.10.240 #68\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-4.fc42 04/01/2014\n  Call Trace:\n  <IRQ>\n  dump_stack lib/dump_stack.c:120\n  nmi_cpu_backtrace.cold lib/nmi_backtrace.c:105\n  nmi_trigger_cpumask_backtrace lib/nmi_backtrace.c:62\n  rcu_dump_cpu_stacks kernel/rcu/tree_stall.h:335\n  rcu_sched_clock_irq.cold kernel/rcu/tree.c:2590\n  update_process_times kernel/time/timer.c:1953\n  tick_sched_handle kernel/time/tick-sched.c:227\n  tick_sched_timer kernel/time/tick-sched.c:1399\n  __hrtimer_run_queues kernel/time/hrtimer.c:1652\n  hrtimer_interrupt kernel/time/hrtimer.c:1717\n  __sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1113\n  asm_call_irq_on_stack arch/x86/entry/entry_64.S:808\n  </IRQ>\n\n  netlink_attachskb net/netlink/af_netlink.c:1234\n  netlink_unicast net/netlink/af_netlink.c:1349\n  kauditd_send_queue kernel/audit.c:776\n  kauditd_thread kernel/audit.c:897\n  kthread kernel/kthread.c:328\n  ret_from_fork arch/x86/entry/entry_64.S:304\n\nRestore the original behavior of the check which commit in Fixes\naccidentally missed when restructuring the code.\n\nFound by Linux Verification Center (linuxtesting.org).",
  "severity" : [ {
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    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
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    "url" : "https://git.kernel.org/stable/c/346c820ef5135cf062fa3473da955ef8c5fb6929"
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  }, {
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    "url" : "https://git.kernel.org/stable/c/78fcd69d55c5f11d7694c547eca767a1cfd38ec4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d42b71a34f6b8a2d5c53df81169b03b8d8b5cf4e"
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    "url" : "https://git.kernel.org/stable/c/e8edc7de688791a337c068693f22e8d8b869df71"
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    "url" : "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
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  } ],
  "database_specific" : {
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    "severity" : "MODERATE",
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    "github_reviewed_at" : null,
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  }
}

CVSS V3

5.5 MODERATE

Attack Vector Local (AV:L)

Attack Complexity Low (AC:L)

Privileges Required Low (PR:L)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality None (C:N)

Integrity None (I:N)

Availability High (A:H)

Vector String

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Advisory Metadata

Source ID: GHSA-5j63-8q43-chww
Schema Version: 1.4.0
Published: 2025-09-05 18:31
Last Modified: 2026-10-15 03:34
Database Record File: advisories/unreviewed/2025/09/GHSA-5j63-8q43-chww/GHSA-5j63-8q43-chww.json