CVE-2023-53033
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f6ae9f120dada00abfb47313364c35118469455f < 550efeff989b041f3746118c0ddd863c39ddc1aa | affected |
| Linux | Linux | f6ae9f120dada00abfb47313364c35118469455f < a8acfe2c6fb99f9375a9325807a179cd8c32e6e3 | affected |
| Linux | Linux | f6ae9f120dada00abfb47313364c35118469455f < 76ef74d4a379faa451003621a84e3498044e7aa3 | affected |
| Linux | Linux | f6ae9f120dada00abfb47313364c35118469455f < 696e1a48b1a1b01edad542a1ef293665864a4dd0 | affected |
| Linux | Linux | 5.5 | affected |
| Linux | Linux | 0 < 5.5 | unaffected |
| Linux | Linux | 5.10.164 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.89 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.7 <= 6.1.* | unaffected |
| Linux | Linux | 6.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa
- https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3
- https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3
- https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0
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