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NVD / CVE Program· CNA Linux

CVE-2024-49997: net: ethernet: lantiq_etop: fix memory disclosure

Noroxi assessment

Priority: Monitor (action score 30/100)

  • 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: 1% (FIRST EPSS); higher than 64.6% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 1097bf16501ed5e35358d848b0a94ad2830b0f65, 185df159843d30fb71f821e7ea4368c2a3bfcd36, 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18; Azure Linux 3.0 ARM 6.6.57.1-2; Azure Linux 3.0 x64 6.6.57.1-2.

Low priority for now. Upgrade to Linux Linux 1097bf16501ed5e35358d848b0a94ad2830b0f65, 185df159843d30fb71f821e7ea4368c2a3bfcd36, 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18; Azure Linux 3.0 ARM 6.6.57.1-2; Azure Linux 3.0 x64 6.6.57.1-2 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: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Oct 21, 2024
Updated
Oct 15, 2026
EPSS
1.0% · 64th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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

Follow CVE-2024-49997

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 kernel3.0 and later · before 5.10.227
  • linux linux kernel5.11 and later · before 5.15.168
  • linux linux kernel5.16 and later · before 6.1.113
  • linux linux kernel6.2 and later · before 6.6.55
  • linux linux kernel6.7 and later · before 6.10.14
  • linux linux kernel6.11 and later · before 6.11.3
  • linux linux kernel6.12

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

    • 3.0affected
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before 905f06a34f960676e7dc77bea00f2f8fe18177adaffected · git
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before 60c068444c20bf9a3e22b65b5f6f3d9edc852931affected · git
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before 185df159843d30fb71f821e7ea4368c2a3bfcd36affected · git
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before 469856f76f4802c5d7e3d20e343185188de1e2dbaffected · git
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18affected · git
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before e66e38d07b31e177ca430758ed97fbc79f27d966affected · git
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before 1097bf16501ed5e35358d848b0a94ad2830b0f65affected · git
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before 431b122933b197820d319eb3987a67d04346ce9eaffected · git
    • 504d4721ee8e432af4b5f196a08af38bc4dac5fe and later · before 45c0de18ff2dc9af01236380404bbd6a46502c69affected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.115-16.1.115-1
Debian:13linuxbefore 6.11.4-16.11.4-1

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-2024-49982Oct 21, 2024 · aoe: fix the potential use-after-free problem in more places
    31Monitor
  • ← EarlierCVE-2024-49994Oct 21, 2024 · block: fix integer overflow in BLKSECDISCARD
    22Monitor
  • Later →CVE-2024-49998Oct 21, 2024 · net: dsa: improve shutdown sequence
    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 Linux1097bf16501ed5e35358d848b0a94ad2830b0f65Vendor (CNA)
Linux Linux185df159843d30fb71f821e7ea4368c2a3bfcd36Vendor (CNA)
Linux Linux2bf4c101d7c99483b8b15a0c8f881e3f399f7e18Vendor (CNA)
Linux Linux431b122933b197820d319eb3987a67d04346ce9eVendor (CNA)
Linux Linux45c0de18ff2dc9af01236380404bbd6a46502c69Vendor (CNA)
Linux Linux469856f76f4802c5d7e3d20e343185188de1e2dbVendor (CNA)
Linux Linux60c068444c20bf9a3e22b65b5f6f3d9edc852931Vendor (CNA)
Linux Linux905f06a34f960676e7dc77bea00f2f8fe18177adVendor (CNA)
Linux Linuxe66e38d07b31e177ca430758ed97fbc79f27d966Vendor (CNA)
Azure Linux 3.0 ARM6.6.57.1-2 · kernelMicrosoft (MSRC)
Azure Linux 3.0 x646.6.57.1-2 · kernelMicrosoft (MSRC)
debian:linux6.1.115-1 · Debian:12Package registry (OSV)

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).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-212 · Improper Removal of Sensitive Information Before Storage or Transfer

CVSS vector

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

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 (12 more)

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

All records