CVE-2023-53033
Description
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.
How to fix
- linux linux_kernel5.10.164, 5.15.89, 6.1.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.5 ≤ v < 5.10.164, 5.11 ≤ v < 5.15.89, 5.16 ≤ v < 6.1.7, 6.2 | 5.10.164, 5.15.89, 6.1.7 |
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