vulnerability
Ubuntu: (CVE-2023-53840): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:P/I:N/A:C) | Dec 9, 2025 | Dec 11, 2025 | Dec 18, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:P/I:N/A:C)
Published
Dec 9, 2025
Added
Dec 11, 2025
Modified
Dec 18, 2025
Description
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.
Solutions
ubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-aws-5-15ubuntu-upgrade-linux-azureubuntu-upgrade-linux-azure-5-15ubuntu-upgrade-linux-bluefieldubuntu-upgrade-linux-gcpubuntu-upgrade-linux-gcp-5-15ubuntu-upgrade-linux-gkeubuntu-upgrade-linux-gkeopubuntu-upgrade-linux-hwe-5-15ubuntu-upgrade-linux-ibmubuntu-upgrade-linux-intel-iot-realtimeubuntu-upgrade-linux-intel-iotgubuntu-upgrade-linux-intel-iotg-5-15ubuntu-upgrade-linux-kvmubuntu-upgrade-linux-lowlatencyubuntu-upgrade-linux-lowlatency-hwe-5-15ubuntu-upgrade-linux-nvidiaubuntu-upgrade-linux-nvidia-tegraubuntu-upgrade-linux-nvidia-tegra-5-15ubuntu-upgrade-linux-oracleubuntu-upgrade-linux-oracle-5-15ubuntu-upgrade-linux-raspiubuntu-upgrade-linux-realtimeubuntu-upgrade-linux-riscv-5-15
References
- CVE-2023-53840
- https://attackerkb.com/topics/CVE-2023-53840
- URL-https://git.kernel.org/linus/a4a97ab3db5c081eb6e7dba91306adefb461e0bd
- URL-https://git.kernel.org/stable/c/351c8d8650d1ccc006255fa01f98b6c6496a02e5
- URL-https://git.kernel.org/stable/c/a4a97ab3db5c081eb6e7dba91306adefb461e0bd
- URL-https://git.kernel.org/stable/c/df7c8aba7309f4dc55df94e06b67f576c0f52406
- URL-https://git.kernel.org/stable/c/e8fb0f13e45cf361fd06593d3cb2d89915cd3bd0
- URL-https://www.cve.org/CVERecord?id=CVE-2023-53840
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