CVE-2023-52628
highpriority · track · 28EPSS 0.007 · 51 %ileDEEURUUSEPSS · scored 2026-10-27
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).
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (57)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-0741Linux Kernel: Schwachstelle ermöglicht nicht spezifizierten AngriffDeutsch2024-03-27csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (22)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2023-52628cnnvd
- https://cxsecurity.com/cveshow/CVE-2023-52628/cnnvd
- https://git.kernel.org/stable/c/1ad7b189cc1411048434e8595ffcbe7873b71082cnnvd
- https://git.kernel.org/stable/c/a7d86a77c33ba1c357a7504341172cc1507f0698cnnvd
- https://git.kernel.org/stable/c/c8f292322ff16b9a2272a67de396c09a50e09dcecnnvd
- https://git.kernel.org/stable/c/d9ebfc0f21377690837ebbd119e679243e0099cccnnvd
- https://git.kernel.org/stable/c/fd94d9dadee58e09b49075240fe83423eb1dcd36cnnvd
- https://git.kernel.org/stable/c/1ad7b189cc1411048434e8595ffcbe7873b71082enisa_euvd
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