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CVE-2026-46333: Linux, заобикаляне на вход и права

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.

CVE радар: още уязвимости от този вид

  • Експлоатация: има публичен пример за експлоатация
  • Атаката не може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it can core dump or not - and makes no sense when you don't have an associated mm. And almost all users do in fact use it only for the case where the task has a mm pointer. But we have one odd special case: ptrace_may_access() uses 'dumpable' to check various other things entirely independently of the MM (typically explicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for threads that no longer have a VM (and maybe never did, like most kernel threads). It's not what this flag was designed for, but it is what it is. The ptrace code does check that the uid/gid matches, so you do have to be uid-0 to see kernel thread details, but this means that the traditional "drop capabilities" model doesn't make any difference for this all. Make it all make a *bit* more sense by saying that if you don't have a MM pointer, we'll use a cached "last dumpability" flag if the thread ever had a MM (it will be zero for kernel threads since it is never set), and require a proper CAP_SYS_PTRACE capability to override.

Засегнати продукти

  • Linux Linux: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 преди 93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6; bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 преди 15b828a46f305ae9f05a7c16914b3ce273474205; bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 преди 4709234fd1b95136ceb789f639b1e7ea5de1b181; bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 преди 8f907d345bae8f4b3f004c5abc56bf2dfb851ea7; bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 преди 6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d; bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 преди 2a93a4fac7b6051d3be7cd1b015fe7320cd0404d; bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 преди 01363cb3fbd0238ffdeb09f53e9039c9edf8a730; bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 преди 31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a; d5b3e840dbf6dd2c0f30b5982b6f5ecd49e46b12; 03eed7afbc09e061f66b448daf7863174c3dc3f3; e45692fa1aea06676449b63ef3c2b6e1e72b7578; 694a95fa6dae4991f16cda333d897ea063021fed; 3.16.52 преди 3.17; 4.4.40 преди 4.5; 4.8.16 преди 4.9; 4.9.1 преди 4.10
  • Linux Linux: 4.10; преди 4.10; 5.10.256 до 5.10.*; 5.15.207 до 5.15.*; 6.1.173 до 6.1.*; 6.6.139 до 6.6.*; 6.12.89 до 6.12.*; 6.18.31 до 6.18.*; 7.0.8 до 7.0.*; от 7.1 нататък
  • Red Hat: още 21 продукта, добавени от Red Hat

    NVIDIA for RHEL 10, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat OpenShift Container Platform 4.20, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat OpenShift Container Platform 4

  • Siemens: още 3 продукта, добавени от Siemens

    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Вид слабост

История

  • 15 май 2026 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2026-46333: Linux, заобикаляне на вход и права | freedomonline.bg