CVE-2024-50080

Summary

In the Linux kernel, the following vulnerability has been resolved:

ublk: don't allow user copy for unprivileged device

UBLK_F_USER_COPY requires userspace to call write() on ublk char device for filling request buffer, and unprivileged device can't be trusted.

So don't allow user copy for unprivileged device.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1172d5b8beca6b899deb9f7f2850e7e47ec16198 < 6414ab5c9c9c068eca6dc4fd3a036bc4b83164dcaffected
LinuxLinux1172d5b8beca6b899deb9f7f2850e7e47ec16198 < 8f3d5686a2409877c5e8e2540774d24ed2b4a4ceaffected
LinuxLinux1172d5b8beca6b899deb9f7f2850e7e47ec16198 < 42aafd8b48adac1c3b20fe5892b1b91b80c1a1e6affected
LinuxLinux6.5affected
LinuxLinux0 < 6.5unaffected
LinuxLinux6.6.58 <= 6.6.*unaffected
LinuxLinux6.11.5 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References