CVE-2023-53033

MEDIUM EPSS 7.3%
Published Mar 27, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Mar 27, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
7.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥5.5  –  <5.10.164
linuxlinux_kernel*≥5.11  –  <5.15.89
linuxlinux_kernel*≥5.16  –  <6.1.7
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3
    Patch