CVE-2023-52628
Description
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).
How to fix
- linux linux_kernel5.10.198, 5.15.132, 6.1.54, 6.5.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.1 ≤ v < 5.10.198, 5.11 ≤ v < 5.15.132, 5.16 ≤ v < 6.1.54, 6.2 ≤ v < 6.5.4 | 5.10.198, 5.15.132, 6.1.54, 6.5.4 |
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