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CVE-2026-53218 In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_exthdr: fix register tracking for…
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_exthdr: fix register tracking for F_PRESENT flag nft_exthdr_init() passes user-controlled priv->len to nft_parse_register_store(), which marks that many bytes in the register bitmap as initialized. However, when NFT_EXTHDR_F_PRESENT is set, the eval paths write only 1 byte (nft_reg_store8) or 4 bytes (*dest = 0 on TCP/DCCP error path). When len > 4, registers beyond the first are never written, retaining uninitialized stack data from nft_regs. Bail out if userspace requests too much data when F_PRESENT is set.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.1 | premières → < 7.1 | 7.1 |
| Linux 7.0 | premières → < 7.0.13 | 7.0.13 |
| Linux 6.18 | premières → < 6.18.36 | 6.18.36 |
| Linux 6.12 | premières → < 6.12.94 | 6.12.94 |
| Linux 6.6 | premières → < 6.6.143 | 6.6.143 |
| Linux 6.1 | premières → < 6.1.176 | 6.1.176 |
| Linux 5.15 | premières → < 5.15.210 | 5.15.210 |
| Linux 5.10 | premières → < 5.10.259 | 5.10.259 |
| Linux | 4.11 | Pas de correctif indiqué |
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| Produit | Versions touchées | Corrigé en |
|---|---|---|
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions non publiées |
Références
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
Chronologie
- Publiée
- Dernière modification
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