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CVE-2026-46033: Linux, невалидиран вход

7.1

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

CVE радар: още уязвимости от този вид

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject short ahash digests during instance creation authencesn requires either a zero authsize or an authsize of at least 4 bytes because the ESN encrypt/decrypt paths always move 4 bytes of high-order sequence number data at the end of the authenticated data. While crypto_authenc_esn_setauthsize() already rejects explicit non-zero authsizes in the range 1..3, crypto_authenc_esn_create() still copied auth->digestsize into inst->alg.maxauthsize without validating it. The AEAD core then initialized the tfm's default authsize from that value. As a result, selecting an ahash with digest size 1..3, such as cbcmac(cipher_null), exposed authencesn instances whose default authsize was invalid even though setauthsize() would have rejected the same value. AF_ALG could then trigger the ESN tail handling with a too-short tag and hit an out-of-bounds access. Reject authencesn instances whose ahash digest size is in the invalid non-zero range 1..3 so that no tfm can inherit an unsupported default authsize.

    Засегнати продукти

    • Linux Linux: f15f05b0a5de667c821a9727c33bce9d1d9b26dd преди 77f59fb2d3aa33e90ec6cbbf45dcfb20ab82b1a9; f15f05b0a5de667c821a9727c33bce9d1d9b26dd преди 2f31cd1e64a079c845bca31d2da7b3c90a311726; f15f05b0a5de667c821a9727c33bce9d1d9b26dd преди d4c6a6d08e70bb1083c7c405fc7faacbf19aebc0; f15f05b0a5de667c821a9727c33bce9d1d9b26dd преди b69933e97efea238ebbfcf70c2b1be1cd03f13e3; f15f05b0a5de667c821a9727c33bce9d1d9b26dd преди 67f1f0933cc3d78dde222842bcad2778ec7a0b88; f15f05b0a5de667c821a9727c33bce9d1d9b26dd преди b42821c15445f93daea3e76ada682b2b7181c476; f15f05b0a5de667c821a9727c33bce9d1d9b26dd преди 9aff81e8217e9de2929084b03b3c7f81988c112b; f15f05b0a5de667c821a9727c33bce9d1d9b26dd преди 5db6ef9847717329f12c5ea8aba7e9f588a980c0
    • Linux Linux: 4.11; преди 4.11; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.140 до 6.6.*; 6.12.86 до 6.12.*; 6.18.27 до 6.18.*; 7.0.4 до 7.0.*; от 7.1 нататък
    • Red Hat: още 5 продукта, добавени от Red Hat

      Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9

    • Siemens: още 4 продукта, добавени от Siemens

      SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

    Вид слабост

    История

    • 27 май 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-46033: Linux, невалидиран вход | freedomonline.bg