vulnerability

Huawei EulerOS: CVE-2018-18397: kernel security update

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published
2018-12-12
Added
2019-03-11
Modified
2024-11-27

Description

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.

Solution(s)

huawei-euleros-2_0_sp5-upgrade-kernelhuawei-euleros-2_0_sp5-upgrade-kernel-debuginfohuawei-euleros-2_0_sp5-upgrade-kernel-debuginfo-common-x86_64huawei-euleros-2_0_sp5-upgrade-kernel-develhuawei-euleros-2_0_sp5-upgrade-kernel-headershuawei-euleros-2_0_sp5-upgrade-kernel-toolshuawei-euleros-2_0_sp5-upgrade-kernel-tools-libshuawei-euleros-2_0_sp5-upgrade-perfhuawei-euleros-2_0_sp5-upgrade-python-perf
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