CVE-2024-50288: media: vivid: fix buffer overwrite when using > 32 buffers
First published: Tue Nov 19 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: media: vivid: fix buffer overwrite when using > 32 buffers The maximum number of buffers that can be requested was increased to 64 for the video capture queue. But video capture used a must_blank array that was still sized for 32 (VIDEO_MAX_FRAME). This caused an out-of-bounds write when using buffer indices >= 32. Create a new define MAX_VID_CAP_BUFFERS that is used to access the must_blank array and set max_num_buffers for the video capture queue. This solves a crash reported by: https://bugzilla.kernel.org/show_bug.cgi?id=219258
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.8<6.11.8 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 | |
| Linux Kernel | =6.12-rc5 | |
| Linux Kernel | =6.12-rc6 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
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Reference Links
- https://git.kernel.org/stable/c/e6bacd8f2178b22859fe6d9f755f19dfcd9d3862
- https://git.kernel.org/stable/c/96d8569563916fe2f8fe17317e20e43f54f9ba4b
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50288
- https://nvd.nist.gov/vuln/detail/CVE-2024-50288
- https://launchpad.net/bugs/cve/CVE-2024-50288
- https://security-tracker.debian.org/tracker/CVE-2024-50288
- https://ubuntu.com/security/CVE-2024-50288
- https://git.kernel.org/linus/96d8569563916fe2f8fe17317e20e43f54f9ba4b
Frequently Asked Questions
What is the severity of CVE-2024-50288?
CVE-2024-50288 has a medium severity level due to potential buffer overwrite issues.
How do I fix CVE-2024-50288?
To fix CVE-2024-50288, update your Linux kernel to version 6.12 or later.
What versions of the Linux kernel are affected by CVE-2024-50288?
CVE-2024-50288 affects Linux kernel versions between 6.8 and 6.11.8, as well as the 6.12 release candidates.
What components are impacted by CVE-2024-50288?
CVE-2024-50288 specifically impacts the video capture functionality in the Linux kernel's media subsystem.
Is there any workaround for CVE-2024-50288?
Currently, there are no recommended workarounds for CVE-2024-50288, so updating the kernel is the best mitigation.
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