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).
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
49499c3e6e18b7677a63316f3ff54a16533dc28f to < 28a97c43c9e32f437ebb8d6126f9bb7f3ca9521aaffected49499c3e6e18b7677a63316f3ff54a16533dc28f to < cf39c4f77a773a547ac2bcf30ecdd303bb0c80cbaffected49499c3e6e18b7677a63316f3ff54a16533dc28f to < a7d86a77c33ba1c357a7504341172cc1507f0698affected49499c3e6e18b7677a63316f3ff54a16533dc28f to < 1ad7b189cc1411048434e8595ffcbe7873b71082affected49499c3e6e18b7677a63316f3ff54a16533dc28f to < d9ebfc0f21377690837ebbd119e679243e0099ccaffected49499c3e6e18b7677a63316f3ff54a16533dc28f to < c8f292322ff16b9a2272a67de396c09a50e09dceaffected49499c3e6e18b7677a63316f3ff54a16533dc28f to < fd94d9dadee58e09b49075240fe83423eb1dcd36affected
Linux Linux
Default version status: affected
4.1affected0 to < 4.1unaffected4.19.316 to ≤ 4.19.*unaffected5.4.279 to ≤ 5.4.*unaffected5.10.198 to ≤ 5.10.*unaffected5.15.132 to ≤ 5.15.*unaffected6.1.54 to ≤ 6.1.*unaffected6.5.4 to ≤ 6.5.*unaffected6.6 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/28a97c43c9e32f437ebb8d6126f9bb7f3ca9521a ↗
- https://git.kernel.org/stable/c/cf39c4f77a773a547ac2bcf30ecdd303bb0c80cb ↗
- https://git.kernel.org/stable/c/a7d86a77c33ba1c357a7504341172cc1507f0698 ↗
- https://git.kernel.org/stable/c/1ad7b189cc1411048434e8595ffcbe7873b71082 ↗
- https://git.kernel.org/stable/c/d9ebfc0f21377690837ebbd119e679243e0099cc ↗
- https://git.kernel.org/stable/c/c8f292322ff16b9a2272a67de396c09a50e09dce ↗
- https://git.kernel.org/stable/c/fd94d9dadee58e09b49075240fe83423eb1dcd36 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗