linux: In the Linux kernel, the following vulnerability has been resolved: usb: early: xhci-dbc: Fix a potential out-of-bou...
CVE-2023-53840 is fixed in 20 products on 1 platform, first by ALAS2023-2023-138, released March 20, 2023. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: usb: early: xhci-dbc: Fix a potential out-of-bound memory access If xdbc_bulk_write() fails, the values in 'buf' can be anything. So the string is not guaranteed to be NULL terminated when xdbc_trace() is called. Reserve an extra byte, which will be zeroed automatically because 'buf' is a static variable, in order to avoid troubles, should it happen.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| bpftool-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-devel · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-headers · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-libbpf · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-libbpf-devel · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-libbpf-static · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-livepatch-6.1.19-30.43 · amzn 2023 | 1.0-0.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-tools · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-tools-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-tools-devel · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| linux · Debian 12.15 (bookworm) | 6.1.20-1 | DEBIAN-CVE-2023-53840 | Dec 9, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.20-1 | DEBIAN-CVE-2023-53840 | Dec 9, 2025 |
| linux · Debian 14 | 6.1.20-1 | DEBIAN-CVE-2023-53840 | Dec 9, 2025 |
| perf · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| perf-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| python3-perf · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| python3-perf-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
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