CVE-2021-41073
Published Sep 19, 2021
·
Last updated a year ago
Description
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.
Risk scores
CVSS 3.1
- Primary
- 7.8
- 5.9
- 1.8
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- HIGH
CVSS 2.0
- Primary
- 7.2
- 10
- 3.9
- AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
Source
cve@mitre.org
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