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CVE-2026-23060 In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD…
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than the minimum expected length, crypto_authenc_esn_decrypt() can advance past the end of the destination scatterlist and trigger a NULL pointer dereference in scatterwalk_map_and_copy(), leading to a kernel panic (DoS). Add a minimum AAD length check to fail fast on invalid inputs.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.19 | earliest → < 6.19 | 6.19 |
| Linux 6.18 | earliest → < 6.18.8 | 6.18.8 |
| Linux 6.12 | earliest → < 6.12.68 | 6.12.68 |
| Linux 6.6 | earliest → < 6.6.122 | 6.6.122 |
| Linux 6.1 | earliest → < 6.1.162 | 6.1.162 |
| Linux 5.15 | earliest → < 5.15.199 | 5.15.199 |
| Linux 5.10 | earliest → < 5.10.249 | 5.10.249 |
| Linux | 4.3 | No fix stated |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
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| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
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