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NVD / CVE Program· CNA Linux

CVE-2024-39503: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 0f1bb77c6d837c9513943bc7c08f04c5cc5c6568, 2ba35b37f780c6410bb4bba9c3072596d8576702, 390b353d1a1da3e9c6c0fd14fe650d69063c95d6.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0f1bb77c6d837c9513943bc7c08f04c5cc5c6568, 2ba35b37f780c6410bb4bba9c3072596d8576702, 390b353d1a1da3e9c6c0fd14fe650d69063c95d6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type Lion Ackermann reported that there is a race condition between namespace cleanup in ipset and the garbage collection of the list:set type. The namespace cleanup can destroy the list:set type of sets while the gc of the set type is waiting to run in rcu cleanup. The latter uses data from the destroyed set which thus leads use after free. The patch contains the following parts: - When destroying all sets, first remove the garbage collectors, then wait if needed and then destroy the sets. - Fix the badly ordered "wait then remove gc" for the destroy a single set case. - Fix the missing rcu locking in the list:set type in the userspace test case. - Use proper RCU list handlings in the list:set type. The patch depends on c1193d9bbbd3 (netfilter: ipset: Add list flush to cancel_gc).

HighCVSS 7.0 · v3.1—No exploit Fix available
Published
Jul 12, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 12th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.0
CNA · Linux
7.8
0.8 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.4.269 and later · before 5.4.279
  • linux linux kernel5.10.210 and later · before 5.10.221
  • linux linux kernel5.15.149 and later · before 5.15.162
  • linux linux kernel6.1.79 and later · before 6.1.95
  • linux linux kernel6.6.18 and later · before 6.6.35
  • linux linux kernel6.7.6 and later · before 6.8
  • linux linux kernel6.8.1 and later · before 6.9.6
  • linux linux kernel6.10
  • linux linux kernel6.8

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 970709a67696b100a57b33af1a3d75fc34b747eb, 6.8affected
    • c7f2733e5011bfd136f1ca93497394d43aa76225 and later · before c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3affected · git
    • a24d5f2ac8ef702a58e55ec276aad29b4bd97e05 and later · before 93b53c202b51a69e42ca57f5a183f7e008e19f83affected · git
    • c2dc077d8f722a1c73a24e674f925602ee5ece49 and later · before 0f1bb77c6d837c9513943bc7c08f04c5cc5c6568affected · git
    • 653bc5e6d9995d7d5f497c665b321875a626161c and later · before 390b353d1a1da3e9c6c0fd14fe650d69063c95d6affected · git
    • b93a6756a01f4fd2f329a39216f9824c56a66397 and later · before 2ba35b37f780c6410bb4bba9c3072596d8576702affected · git
    • 97f7cf1cd80eeed3b7c808b7c12463295c751001 and later · before 90ae20d47de602198eb69e6cd7a3db3420abfc08affected · git
    • 97f7cf1cd80eeed3b7c808b7c12463295c751001 and later · before 4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10affected · git
    • 5.4.269 and later · before 5.4.279affected · semver
    • 5.10.210 and later · before 5.10.221affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8bpftoolbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernelbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-abi-stablelistsbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-corebefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-cross-headersbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debugbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debug-corebefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debug-develbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debug-modulesbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debug-modules-extrabefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-develbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-docbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-headersbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-modulesbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-modules-extrabefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-rtbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-corebefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debugbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debug-corebefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debug-develbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debug-modulesbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debug-modules-extrabefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-develbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-modulesbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10

+64

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-41003Jul 12, 2024 · bpf: Fix reg_set_min_max corruption of fake_reg
    31Monitor
  • ← EarlierCVE-2024-39502Jul 12, 2024 · ionic: fix use after netif_napi_del()
    31Monitor
  • Later →CVE-2024-39509Jul 12, 2024 · HID: core: remove unnecessary WARN_ON() in implement()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0f1bb77c6d837c9513943bc7c08f04c5cc5c6568Vendor (CNA)
Linux Linux2ba35b37f780c6410bb4bba9c3072596d8576702Vendor (CNA)
Linux Linux390b353d1a1da3e9c6c0fd14fe650d69063c95d6Vendor (CNA)
Linux Linux4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10Vendor (CNA)
Linux Linux5.10.221Vendor (CNA)
Linux Linux5.15.162Vendor (CNA)
Linux Linux5.4.279Vendor (CNA)
Linux Linux6.1.95Vendor (CNA)
Linux Linux6.6.35Vendor (CNA)
Linux Linux6.8Vendor (CNA)
Linux Linux90ae20d47de602198eb69e6cd7a3db3420abfc08Vendor (CNA)
Linux Linux93b53c202b51a69e42ca57f5a183f7e008e19f83Vendor (CNA)
Linux Linuxc0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3Vendor (CNA)
almalinux:bpftool4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-abi-stablelists4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-core4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-cross-headers4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-core4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-devel4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules-extra4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-devel4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-doc4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
debian:linux6.1.99-1 · Debian:12Package registry (OSV)
red hat:bpftool0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:bpftool-debuginfo0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-abi-stablelists0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)

+10

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (10 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records