net: ethernet: lantiq_etop: fix memory disclosure (Linux Linux)

CVE-2024-49997
HIGH 7.5

At a glance

Source
NVD
EPSS
EPSS 1.06 % · percentile 65 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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.

Weaknesses (CWE)

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

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 504d4721ee8e432af4b5f196a08af38bc4dac5fe < 905f06a34f960676e7dc77bea00f2f8fe18177ad ; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe < 60c068444c20bf9a3e22b65b5f6f3d9edc852931 ; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe < 185df159843d30fb71f821e7ea4368c2a3bfcd36 ; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe < 469856f76f4802c5d7e3d20e343185188de1e2db ; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe < 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 ; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe < e66e38d07b31e177ca430758ed97fbc79f27d966
Linux · Linuxaffected 3.0 ; unaffected 0 < 3.0 ; unaffected 4.19.323 ≤ 4.19.* ; unaffected 5.4.285 ≤ 5.4.* ; unaffected 5.10.227 ≤ 5.10.* ; unaffected 5.15.168 ≤ 5.15.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD