CVE Catalog

CVE-2024-49997

High
Published: Translated: NVD NIST

Summary

A vulnerability has been identified in the Linux kernel that leads to memory disclosure due to improper padding application in Ethernet frames. The patch uses skb_put_padto() to properly pad Ethernet frames, eliminating the data disclosure issue.

Risk Assessment

Memory disclosure may lead to leakage of sensitive information, posing a threat to data security within the organization. In particular, data may be intercepted by unauthorized entities.

Recommendation

It is recommended to apply the latest Linux kernel patch to mitigate this vulnerability. Additionally, monitor statistics and update drivers when they become available.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS