Amazon Linux 2023 Security Advisory: ALAS2023-2026-1848
Advisory Released Date: 2026-06-22
Advisory Updated Date: 2026-06-22
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. (CVE-2026-23679)
Affected Packages:
libusbx
Issue Correction:
Run dnf update libusbx --releasever 2023.12.20260622 or dnf update --advisory ALAS2023-2026-1848 --releasever 2023.12.20260622 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
aarch64:
libusbx-tests-examples-1.0.24-2.amzn2023.0.3.aarch64
libusbx-tests-examples-debuginfo-1.0.24-2.amzn2023.0.3.aarch64
libusbx-debuginfo-1.0.24-2.amzn2023.0.3.aarch64
libusbx-devel-1.0.24-2.amzn2023.0.3.aarch64
libusbx-1.0.24-2.amzn2023.0.3.aarch64
libusbx-debugsource-1.0.24-2.amzn2023.0.3.aarch64
noarch:
libusbx-devel-doc-1.0.24-2.amzn2023.0.3.noarch
src:
libusbx-1.0.24-2.amzn2023.0.3.src
x86_64:
libusbx-tests-examples-debuginfo-1.0.24-2.amzn2023.0.3.x86_64
libusbx-1.0.24-2.amzn2023.0.3.x86_64
libusbx-debugsource-1.0.24-2.amzn2023.0.3.x86_64
libusbx-debuginfo-1.0.24-2.amzn2023.0.3.x86_64
libusbx-tests-examples-1.0.24-2.amzn2023.0.3.x86_64
libusbx-devel-1.0.24-2.amzn2023.0.3.x86_64