CVE-2023-53033 (GCVE-0-2023-53033)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:44 – Updated: 2026-05-11 19:37
VLAI?
Title
netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f6ae9f120dada00abfb47313364c35118469455f , < 550efeff989b041f3746118c0ddd863c39ddc1aa (git)
Affected: f6ae9f120dada00abfb47313364c35118469455f , < a8acfe2c6fb99f9375a9325807a179cd8c32e6e3 (git)
Affected: f6ae9f120dada00abfb47313364c35118469455f , < 76ef74d4a379faa451003621a84e3498044e7aa3 (git)
Affected: f6ae9f120dada00abfb47313364c35118469455f , < 696e1a48b1a1b01edad542a1ef293665864a4dd0 (git)
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Linux Linux Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.10.164 , ≤ 5.10.* (semver)
Unaffected: 5.15.89 , ≤ 5.15.* (semver)
Unaffected: 6.1.7 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.