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CVE-2026-74438: Linux

7.8

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.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: crypto: sun4i-ss - Remove insecure and unused rng_alg Remove sun4i_ss_rng, as it is insecure and unused: - It has multiple vulnerabilities. sun4i_ss_prng_seed() is missing locking and has a buffer overflow. sun4i_ss_prng_generate() fails to fill the entire buffer with cryptographic random bytes, because it rounds the destination length down and also doesn't actually wait for the hardware to be ready before pulling bytes from it. - No user of this code is known. It's usable only theoretically via the "rng" algorithm type of AF_ALG. But userspace actually just uses the actual Linux RNG (/dev/random etc) instead. And rng_algs don't contribute entropy to the actual Linux RNG either. (This may have been confused with hwrng, which does contribute entropy.) The sun4i_ss_prng_seed() buffer overflow was reported by Tianchu Chen and discovered by Atuin - Automated Vulnerability Discovery Engine There's no point in fixing all these vulnerabilities individually when this is unused code, so let's just remove it.

    Засегнати продукти

    • Linux Linux: b8ae5c7387ad075ee61e8c8774ce2bca46bc9236 преди 2eafecaba1b46bb9774eaf3556619fd5b6a17c1c; b8ae5c7387ad075ee61e8c8774ce2bca46bc9236 преди ee2458f8188732aa53a5d42f56e87bfad288b44e; b8ae5c7387ad075ee61e8c8774ce2bca46bc9236 преди 306ded31bfa00a69d25823a60d7c797170bfb4f8; b8ae5c7387ad075ee61e8c8774ce2bca46bc9236 преди e4b7b9819811c4c51064c3d3d3c02f0be7491707; b8ae5c7387ad075ee61e8c8774ce2bca46bc9236 преди c401492e01c7bfd38cf14c94d85c7efafe7d1a25; b8ae5c7387ad075ee61e8c8774ce2bca46bc9236 преди 9c8086d9511189c34dfa3f9e3a03f2bee12f56a5; b8ae5c7387ad075ee61e8c8774ce2bca46bc9236 преди b2c41fa9dd8fc740c489e060b199165771f268d1
    • Linux Linux: 4.14; преди 4.14; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 до *

    История

    • 15 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-74438: Linux | freedomonline.bg