vulnerability
Red Hat: CVE-2026-23060: kernel: Linux kernel: Denial of Service in authencesn due to too-short AAD (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:A/AC:L/Au:N/C:N/I:N/A:C) | Feb 4, 2026 | May 20, 2026 | May 20, 2026 |
Severity
6
CVSS
(AV:A/AC:L/Au:N/C:N/I:N/A:C)
Published
Feb 4, 2026
Added
May 20, 2026
Modified
May 20, 2026
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.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.