CVE-2025-38680
Published: September 5, 2025Last modified: September 5, 2025
Description
In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format() The buffer length check before calling uvc_parse_format() only ensured that the buffer has at least 3 bytes (buflen > 2), buf the function accesses buffer[3], requiring at least 4 bytes. This can lead to an out-of-bounds read if the buffer has exactly 3 bytes. Fix it by checking that the buffer has at least 4 bytes in uvc_parse_format().
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.151-r0) |
| 25 LTS | linux-lts | Fixed (6.12.44-r0) | |
| Stream | linux-lts | Fixed (6.12.43-r0) |
References
- https://git.kernel.org/stable/c/1e269581b3aa5962fdc52757ab40da286168c087
- https://git.kernel.org/stable/c/424980d33b3f816485513e538610168b03fab9f1
- https://git.kernel.org/stable/c/6d4a7c0b296162354b6fc759a1475b9d57ddfaa6
- https://git.kernel.org/stable/c/782b6a718651eda3478b1824b37a8b3185d2740c
- https://git.kernel.org/stable/c/8343f3fe0b755925f83d60b05e92bf4396879758
- https://git.kernel.org/stable/c/9ad554217c9b945031c73df4e8176a475e2dea57
- https://git.kernel.org/stable/c/a97e062e4ff3dab84a2f1eb811e9eddc6699e2a9
- https://git.kernel.org/stable/c/cac702a439050df65272c49184aef7975fe3eff2
- https://git.kernel.org/stable/c/ffdd82182953df643aa63d999b6f1653d0c93778
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html