CVE-2023-52628
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-52628
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52628.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-52628
- Downstream
- Related
- Published
- 2024-03-28T08:15:25Z
- Modified
- 2025-08-09T20:01:27Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nftables: exthdr: fix 4-byte stack OOB write
If priv->len is a multiple of 4, then dst[len / 4] can write past the destination array which leads to stack corruption.
This construct is necessary to clean the remainder of the register in case ->len is NOT a multiple of the register size, so make it conditional just like nft_payload.c does.
The bug was added in 4.1 cycle and then copied/inherited when tcp/sctp and ip option support was added.
Bug reported by Zero Day Initiative project (ZDI-CAN-21950, ZDI-CAN-21951, ZDI-CAN-21961).
- References
-
- https://git.kernel.org/stable/c/1ad7b189cc1411048434e8595ffcbe7873b71082
- https://git.kernel.org/stable/c/28a97c43c9e32f437ebb8d6126f9bb7f3ca9521a
- https://git.kernel.org/stable/c/a7d86a77c33ba1c357a7504341172cc1507f0698
- https://git.kernel.org/stable/c/c8f292322ff16b9a2272a67de396c09a50e09dce
- https://git.kernel.org/stable/c/cf39c4f77a773a547ac2bcf30ecdd303bb0c80cb
- https://git.kernel.org/stable/c/d9ebfc0f21377690837ebbd119e679243e0099cc
- https://git.kernel.org/stable/c/fd94d9dadee58e09b49075240fe83423eb1dcd36