What is the severity of CVE-2023-53033?

CVE-2023-53033 has been classified as a medium severity vulnerability.

How do I fix CVE-2023-53033?

To fix CVE-2023-53033, update your Linux kernel to a patched version that addresses this vulnerability.

What type of vulnerability is CVE-2023-53033?

CVE-2023-53033 is a networking vulnerability in the netfilter module of the Linux kernel.

Which systems are affected by CVE-2023-53033?

CVE-2023-53033 affects systems running vulnerable versions of the Linux kernel utilizing netfilter.

What are the potential impacts of CVE-2023-53033?

Exploitation of CVE-2023-53033 could lead to unexpected behavior in network packet processing.

Vulnerability/
CVE-2023-53033

27/3/2025

28/3/2025

CVE-2023-53033: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits

First published: Thu Mar 27 2025(Updated: )

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits If the offset + length goes over the ethernet + vlan header, then the length is adjusted to copy the bytes that are within the boundaries of the vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet + vlan header are copied directly from the skbuff data area. Fix incorrect arithmetic operator: subtract, not add, the size of the vlan header in case of double-tagged packets to adjust the length accordingly to address CVE-2023-0179.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected Software	Affected Version	How to fix
Linux Kernel

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Frequently Asked Questions

What is the severity of CVE-2023-53033?
CVE-2023-53033 has been classified as a medium severity vulnerability.
How do I fix CVE-2023-53033?
To fix CVE-2023-53033, update your Linux kernel to a patched version that addresses this vulnerability.
What type of vulnerability is CVE-2023-53033?
CVE-2023-53033 is a networking vulnerability in the netfilter module of the Linux kernel.
Which systems are affected by CVE-2023-53033?
CVE-2023-53033 affects systems running vulnerable versions of the Linux kernel utilizing netfilter.
What are the potential impacts of CVE-2023-53033?
Exploitation of CVE-2023-53033 could lead to unexpected behavior in network packet processing.

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