An issue was discovered in the Linux kernel related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended read access.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2021-05-20 21:12 | ALAS-2021-1503 |
Amazon Linux 2 - Core | kernel | 2021-05-20 15:51 | ALAS2-2021-1636 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 3.6 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
NVD | CVSSv3 | 3.6 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
NVD | CVSSv2 | 3.3 | AV:L/AC:M/Au:N/C:P/I:P/A:N |