CVE-2026-23060crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec
Updated under an hour ago ()
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 104880a6b470958ddc30e139c41aa4f6ed3a5234 before df22c9a65e9a9daa368a72fed596af9d7d5876bb; from 104880a6b470958ddc30e139c41aa4f6ed3a5234 before fee86edf5803f1d1f19e3b4f2dacac241bddfa48; 104880a6b470958ddc30e139c41aa4f6ed3a5234 builds before 767e8349f7e929b7dd95c08f0b4cb353459b365e; from 104880a6b470958ddc30e139c41aa4f6ed3a5234 before b0a9609283a5c852addb513dafa655c61eebc1ef; 104880a6b470958ddc30e139c41aa4f6ed3a5234 builds before 161bdc90fce25bd9890adc67fa1c8563a7acbf40; 104880a6b470958ddc30e139c41aa4f6ed3a5234 builds before 9532ff0d0e90ff78a214299f594ab9bac81defe4; 104880a6b470958ddc30e139c41aa4f6ed3a5234 builds before 2397e9264676be7794f8f7f1e9763d90bd3c7335 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.3 before 5.10.249; from 5.11 before 5.15.199; from 5.16 before 6.1.162; from 6.2 before 6.6.122; from 6.7 before 6.12.68; from 6.13 before 6.18.8; 6.19; 6.19; and 4 more ranges | NVD |
References
- https://git.kernel.org/stable/c/df22c9a65e9a9daa368a72fed596af9d7d5876bbpatch
- https://git.kernel.org/stable/c/fee86edf5803f1d1f19e3b4f2dacac241bddfa48patch
- https://git.kernel.org/stable/c/767e8349f7e929b7dd95c08f0b4cb353459b365epatch
- https://git.kernel.org/stable/c/b0a9609283a5c852addb513dafa655c61eebc1efpatch
- https://git.kernel.org/stable/c/161bdc90fce25bd9890adc67fa1c8563a7acbf40patch
- https://git.kernel.org/stable/c/9532ff0d0e90ff78a214299f594ab9bac81defe4patch
- https://git.kernel.org/stable/c/2397e9264676be7794f8f7f1e9763d90bd3c7335patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.