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CVE-2026-23679 on CTRL-OS 26.05

Aliases: CVE-2026-23679

Packages: libusb1

Status: Plausible

Advisory Information

libusb before version 1.0.30 contains a NULL pointer dereference vulnerability that allows attackers to crash applications by supplying a malformed USB configuration descriptor where an interface claims bNumEndpoints greater than zero but is followed by a class-specific descriptor whose bLength exceeds the remaining buffer size, causing parse_interface() to return early without allocating the endpoint array. Attackers can exploit this flaw through libusb_get_active_config_descriptor or libusb_get_config_descriptor by providing crafted descriptors via virtualized USB passthrough, file-based descriptor parsing, or network sources, causing any application iterating over endpoints to dereference a NULL endpoint pointer and crash.

Updates

2026-07-20 20:13 CEST

Metadata changes:

  • Status for package libusb1: “Plausible”

(Amended on: 2026-07-20 20:17 CEST)

2026-06-09 15:35 CEST

Metadata changes:

  • Status for package libusb1: “New”