Linux Kernel CVE-2026-23060
MEDIUMCVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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3DescriptionNVD
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.
AnalysisAI
The Linux kernel's authencesn crypto module fails to validate minimum AAD (Associated Authenticated Data) length, allowing local attackers with unprivileged access to trigger a NULL pointer dereference and kernel panic by submitting specially crafted authentication requests with oversized AAD parameters. This denial-of-service vulnerability affects systems running vulnerable Linux kernel versions and requires local access to exploit. …
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RemediationAI
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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