CVE-2023-34319 Vulnerability Details

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CVE-2023-34319 Metadata Quick Info

CVE Published: 22/09/2023 | CVE Updated: 02/08/2024 | CVE Year: 2023
Source: XEN | Vendor: Linux | Product: Linux
Status : PUBLISHED

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CVE-2023-34319 Description

The fix for XSA-423 added logic to Linux\'es netback driver to deal with a frontend splitting a packet in a way such that not all of the headers would come in one piece. Unfortunately the logic introduced there didn\'t account for the extreme case of the entire packet being split into as many pieces as permitted by the protocol, yet still being smaller than the area that\'s specially dealt with to keep all (possible) headers together. Such an unusual packet would therefore trigger a buffer overrun in the driver.

Metrics

CVSS Version: 3.1 | Base Score: n/a
Vector: n/a

l➤ Exploitability Metrics:
    Attack Vector (AV)*
    Attack Complexity (AC)*
    Privileges Required (PR)*
    User Interaction (UI)*
    Scope (S)*

l➤ Impact Metrics:
    Confidentiality Impact (C)*
    Integrity Impact (I)*
    Availability Impact (A)*

Weakness Enumeration (CWE)

CWE-ID:
CWE Name:
Source: Linux

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description: An unprivileged guest can cause Denial of Service (DoS) of the host by sending network packets to the backend, causing the backend to crash. Data corruption or privilege escalation seem unlikely but have not been ruled out.


Source: NVD (National Vulnerability Database).