vulnerability
SUSE: CVE-2018-16882: SUSE Linux Security Advisory
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Jan 3, 2019 | Dec 7, 2021 | Feb 4, 2022 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Jan 3, 2019
Added
Dec 7, 2021
Modified
Feb 4, 2022
Description
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before 4.14.91 and before 4.19.13 are vulnerable.
Solution(s)
suse-upgrade-cluster-md-kmp-defaultsuse-upgrade-dlm-kmp-defaultsuse-upgrade-gfs2-kmp-defaultsuse-upgrade-kernel-defaultsuse-upgrade-ocfs2-kmp-default
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