CVE-2023-52628

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Source
https://cve.org/CVERecord?id=CVE-2023-52628
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52628.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-52628
Downstream
Related
Published
2024-03-28T07:33:46.217Z
Modified
2026-03-14T12:16:49.808755Z
Summary
netfilter: nftables: exthdr: fix 4-byte stack OOB write
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).

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52628.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
49499c3e6e18b7677a63316f3ff54a16533dc28f
Fixed
28a97c43c9e32f437ebb8d6126f9bb7f3ca9521a
Fixed
cf39c4f77a773a547ac2bcf30ecdd303bb0c80cb
Fixed
a7d86a77c33ba1c357a7504341172cc1507f0698
Fixed
1ad7b189cc1411048434e8595ffcbe7873b71082
Fixed
d9ebfc0f21377690837ebbd119e679243e0099cc
Fixed
c8f292322ff16b9a2272a67de396c09a50e09dce
Fixed
fd94d9dadee58e09b49075240fe83423eb1dcd36

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52628.json"