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.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2022-12-01 17:33 | ALAS-2022-1645 |
Amazon Linux 2 - Core | kernel | 2022-10-31 19:40 | ALAS2-2022-1876 |
Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2022-10-17 22:06 | ALAS2KERNEL-5.10-2022-021 |
Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2022-10-17 22:06 | ALAS2KERNEL-5.15-2022-009 |
Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-10-17 22:06 | ALAS2KERNEL-5.4-2022-037 |
Amazon Linux 2023 | kernel | 2023-02-17 20:46 | ALAS2023-2023-070 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 6.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
NVD | CVSSv3 | 6.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |