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CVE-2024-58239· NVD / CVE Program· CNA Linux

tls: stop recv() if initial process_rx_list gave us non-DATA

Noroxi assessment

Priority: Monitor (action score 22/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.34% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Linux Linux 31e10d6cb0c9532ff070cf50da1657c3acee9276, 3b952d8fdfcf6fd8ea0b8954bc9277642cf0977f, 4338032aa90bd1d5b33a4274e8fa8347cda5ee09.
  • Severity is disputed: the assigning authority (CNA) scores it 8.2, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 31e10d6cb0c9532ff070cf50da1657c3acee9276, 3b952d8fdfcf6fd8ea0b8954bc9277642cf0977f, 4338032aa90bd1d5b33a4274e8fa8347cda5ee09 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: tls: stop recv() if initial process_rx_list gave us non-DATA If we have a non-DATA record on the rx_list and another record of the same type still on the queue, we will end up merging them: - process_rx_list copies the non-DATA record - we start the loop and process the first available record since it's of the same type - we break out of the loop since the record was not DATA Just check the record type and jump to the end in case process_rx_list did some work.

MediumCVSS 5.5 · v3.1—Proof of concept Fix available
Published
Aug 22, 2025
Updated
Oct 15, 2026
EPSS
0.3% · 26th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · Linux
8.2
2.7 point gap

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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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  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-58239

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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 kernel5.1 and later · before 5.4.270
  • linux linux kernel5.5 and later · before 5.10.211
  • linux linux kernel5.11 and later · before 5.15.150
  • linux linux kernel5.16 and later · before 6.1.80
  • linux linux kernel6.2 and later · before 6.6.19
  • linux linux kernel6.7 and later · before 6.7.7
  • 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

    • 5.1affected
    • 692d7b5d1f9125a1cf0595e979e3b5fb7210547e and later · before f310143961e2d9a0479fca117ce869f8aaecc140affected · git
    • 692d7b5d1f9125a1cf0595e979e3b5fb7210547e and later · before 31e10d6cb0c9532ff070cf50da1657c3acee9276affected · git
    • 692d7b5d1f9125a1cf0595e979e3b5fb7210547e and later · before 4338032aa90bd1d5b33a4274e8fa8347cda5ee09affected · git
    • 692d7b5d1f9125a1cf0595e979e3b5fb7210547e and later · before 6756168add1c6c3ef1c32c335bb843a5d1f99a75affected · git
    • 692d7b5d1f9125a1cf0595e979e3b5fb7210547e and later · before 3b952d8fdfcf6fd8ea0b8954bc9277642cf0977faffected · git
    • 692d7b5d1f9125a1cf0595e979e3b5fb7210547e and later · before a4ed943882a8fc057ea5a67643314245e048bbddaffected · git
    • 692d7b5d1f9125a1cf0595e979e3b5fb7210547e and later · before fdfbaec5923d9359698cbb286bc0deadbb717504affected · git
    • before 5.1not affected · semver
    • 5.4.270 and later · up to and including 5.4.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.7-16.7.7-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.70.16.4.0-150600.23.70.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.70.16.4.0-150600.23.70.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.70.16.4.0-150600.23.70.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.70.16.4.0-150600.23.70.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-64kbbefore 5.3.18-150300.59.218.15.3.18-150300.59.218.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-default-basebefore 5.3.18-150300.59.218.1.150300.18.130.15.3.18-150300.59.218.1.150300.18.130.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-docsbefore 5.3.18-150300.59.218.15.3.18-150300.59.218.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-obs-buildbefore 5.3.18-150300.59.218.15.3.18-150300.59.218.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-preemptbefore 5.3.18-150300.59.218.15.3.18-150300.59.218.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-sourcebefore 5.3.18-150300.59.218.15.3.18-150300.59.218.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-symsbefore 5.3.18-150300.59.218.15.3.18-150300.59.218.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-64kbbefore 5.14.21-150400.24.176.15.14.21-150400.24.176.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-docsbefore 5.14.21-150400.24.176.15.14.21-150400.24.176.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-obs-buildbefore 5.14.21-150400.24.176.15.14.21-150400.24.176.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-sourcebefore 5.14.21-150400.24.176.15.14.21-150400.24.176.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-symsbefore 5.14.21-150400.24.176.15.14.21-150400.24.176.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-64kbbefore 5.14.21-150500.55.121.25.14.21-150500.55.121.2
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-docsbefore 5.14.21-150500.55.121.15.14.21-150500.55.121.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-obs-buildbefore 5.14.21-150500.55.121.15.14.21-150500.55.121.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-symsbefore 5.14.21-150500.55.121.15.14.21-150500.55.121.1
SUSE:Linux Enterprise Live Patching 15 SP3kernel-defaultbefore 5.3.18-150300.59.218.15.3.18-150300.59.218.1
SUSE:Linux Enterprise Live Patching 15 SP3kernel-livepatch-SLE15-SP3_Update_61before 1-150300.7.3.11-150300.7.3.1

+80

Other highest-scoring records for the same primary product.

  • 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
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-38674Aug 22, 2025 · Revert "drm/prime: Use dma_buf from GEM object instance"
    22Monitor
  • ← EarlierCVE-2025-38675Aug 22, 2025 · xfrm: state: initialize state_ptrs earlier in xfrm_state_find
    18Monitor
  • Later →CVE-2025-38617Aug 22, 2025 · net/packet: fix a race in packet_set_ring() and packet_notifier()
    18Monitor

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 Linux31e10d6cb0c9532ff070cf50da1657c3acee9276Vendor (CNA)
Linux Linux3b952d8fdfcf6fd8ea0b8954bc9277642cf0977fVendor (CNA)
Linux Linux4338032aa90bd1d5b33a4274e8fa8347cda5ee09Vendor (CNA)
Linux Linux6756168add1c6c3ef1c32c335bb843a5d1f99a75Vendor (CNA)
Linux Linuxa4ed943882a8fc057ea5a67643314245e048bbddVendor (CNA)
Linux Linuxf310143961e2d9a0479fca117ce869f8aaecc140Vendor (CNA)
Linux Linuxfdfbaec5923d9359698cbb286bc0deadbb717504Vendor (CNA)
debian:linux6.1.82-1 · Debian:12Package registry (OSV)
opensuse:kernel-rt6.4.0-150600.10.52.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-rt_debug6.4.0-150600.10.52.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-rt6.4.0-150600.10.52.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-rt6.4.0-150600.10.52.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.70.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-64kb6.4.0-150700.53.16.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-default6.4.0-150600.23.70.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150700.53.16.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.70.1.150600.12.30.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default-base6.4.0-150700.53.16.1.150700.17.11.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-livepatch-SLE15-SP6-RT_Update_151-150600.1.3.1 · SUSE:Linux Enterprise Live Patching 15 SP6Package registry (OSV)
suse:kernel-rt6.4.0-150600.10.52.1 · SUSE:Real Time Module 15 SP6Package registry (OSV)
suse:kernel-rt_debug6.4.0-150600.10.52.1 · SUSE:Real Time Module 15 SP6Package registry (OSV)
suse:kernel-source-rt6.4.0-150600.10.52.1 · SUSE:Real Time Module 15 SP6Package registry (OSV)
suse:kernel-syms-rt6.4.0-150600.10.52.1 · SUSE:Real Time Module 15 SP6Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:42025-09-17
Proof-of-concept repository on GitHubstars:62025-10-14

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.

  1. Published
  2. First PoC+25 d
  3. TodayOct 20, 2026+424 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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.

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).

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.
  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

—

CVSS vector

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

All records