VDB
DEBIAN-CVE-2022-39842
DEBIAN-CVE-2022-39842
PUBLISHED
CVSS 6.099999904632568 MEDIUM
An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur. NOTE: the original discoverer disputes that the overflow can actually happen.
Risk Scores
CVSS v3.1
6.099999904632568
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 0, 0, 0 |
| Debian:13 | linux | 0, 0, 0 |
| Debian:11 | linux | 5.10.92-2, 5.10.106-1, * |
| Debian:12 | linux | 0, 0, 0 |
Timeline
- Sep 5, 2022 CVE Published
- Apr 28, 2026 CVE Updated