CVE-2023-46838 - Code injection
CVE Information
Original CVE data
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.
Debian - (1)
Fedoraproject - (1)
Linux - (1)
Basic Analysis
Common vulnerability metrics
Code injection
Vulnerability weakness type is in the top 25 CWEs according to MITRE. View Mitre Top 25 CWEs
No exploit code is reported to exist.
Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog
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No sightings of the vulnerability within threat reports.
Cybersecurity Frameworks
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Compliance Impact
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Web Application Security Frameworks
Applicable if the issue likely affects a web application