9.8
Critique
CVE-2026-31637 In the Linux kernel, the following vulnerability has been resolved: rxrpc: reject undecryptable rxkad response tickets…
Description
In the Linux kernel, the following vulnerability has been resolved: rxrpc: reject undecryptable rxkad response tickets rxkad_decrypt_ticket() decrypts the RXKAD response ticket and then parses the buffer as plaintext without checking whether crypto_skcipher_decrypt() succeeded. A malformed RESPONSE can therefore use a non-block-aligned ticket length, make the decrypt operation fail, and still drive the ticket parser with attacker-controlled bytes. Check the decrypt result and abort the connection with RXKADBADTICKET when ticket decryption fails.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.0 | premières → < 7.0 | 7.0 |
| Linux 6.19 | premières → < 6.19.13 | 6.19.13 |
| Linux 6.18 | premières → < 6.18.23 | 6.18.23 |
| Linux 6.12 | premières → < 6.12.82 | 6.12.82 |
| Linux 6.6 | premières → < 6.6.135 | 6.6.135 |
| Linux 6.1 | premières → < 6.1.175 | 6.1.175 |
| Linux 5.15 | premières → < 5.15.209 | 5.15.209 |
| Linux 5.10 | premières → < 5.10.258 | 5.10.258 |
| Linux | 2.6.22 | Pas de correctif indiqué |
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| Produit | Versions touchées | Corrigé en |
|---|---|---|
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions non publiées |
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