crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-23060
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-02-04 17:16:16 UTC
Updated2026-07-14 13:18:23 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-476

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 df22c9a65e9a9daa368a72fed596af9d7d5876bb git Not specified
CNA Linux Linux affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 fee86edf5803f1d1f19e3b4f2dacac241bddfa48 git Not specified
CNA Linux Linux affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 767e8349f7e929b7dd95c08f0b4cb353459b365e git Not specified
CNA Linux Linux affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 b0a9609283a5c852addb513dafa655c61eebc1ef git Not specified
CNA Linux Linux affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 161bdc90fce25bd9890adc67fa1c8563a7acbf40 git Not specified
CNA Linux Linux affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 9532ff0d0e90ff78a214299f594ab9bac81defe4 git Not specified
CNA Linux Linux affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 2397e9264676be7794f8f7f1e9763d90bd3c7335 git Not specified
CNA Linux Linux affected 4.3 Not specified
CNA Linux Linux unaffected 4.3 semver Not specified
CNA Linux Linux unaffected 5.10.249 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.199 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.162 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.122 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.68 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.8 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/df22c9a65e9a9daa368a72fed596af9d7d5876bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fee86edf5803f1d1f19e3b4f2dacac241bddfa48 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9532ff0d0e90ff78a214299f594ab9bac81defe4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/2397e9264676be7794f8f7f1e9763d90bd3c7335 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/161bdc90fce25bd9890adc67fa1c8563a7acbf40 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b0a9609283a5c852addb513dafa655c61eebc1ef 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/767e8349f7e929b7dd95c08f0b4cb353459b365e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-019113.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
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