CVE-2020-29374

Public on 2021-05-20
Modified on 2021-05-24
Description
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.
Severity
Medium
CVSS v3 Base Score
3.6
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2021-05-20 15:51 ALAS2-2021-1636
Amazon Linux 1 kernel 2021-05-20 21:12 ALAS-2021-1503

CVSS Scores

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 CVSSv2 3.3 AV:L/AC:M/Au:N/C:P/I:P/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