CVE-2023-46838 (GCVE-0-2023-46838)

Vulnerability from cvelistv5 – Published: 2024-01-29 10:18 – Updated: 2025-11-04 18:18
VLAI?
Title
Linux: netback processing of zero-length transmit fragment
Summary
Transmit requests in Xen's virtual network protocol can consist of multiple parts. While not really useful, except for the initial part any of them may be of zero length, i.e. carry no data at all. Besides a certain initial portion of the to be transferred data, these parts are directly translated into what Linux calls SKB fragments. Such converted request parts can, when for a particular SKB they are all of length zero, lead to a de-reference of NULL in core networking code.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
XEN
References
Impacted products
Vendor Product Version
Linux Linux Unknown: consult Xen advisory XSA-448
Create a notification for this product.
Credits
This issue was discovered by Pratyush Yadav of Amazon.
Show details on NVD website
To clipboard 

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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