vulnerability
SUSE: CVE-2018-18281: SUSE Linux Security Advisory
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:P/I:P/A:P) | Oct 30, 2018 | Nov 10, 2018 | Feb 4, 2022 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Oct 30, 2018
Added
Nov 10, 2018
Modified
Feb 4, 2022
Description
Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19.
Solutions
suse-upgrade-kernel-azure-basesuse-upgrade-kernel-defaultsuse-upgrade-kernel-default-extrasuse-upgrade-kernel-default-mansuse-upgrade-kernel-devel-azuresuse-upgrade-kernel-docssuse-upgrade-kernel-obs-buildsuse-upgrade-kernel-source-azure
References
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