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prionPRIOn knowledge basePRION:CVE-2022-0358
HistoryAug 29, 2022 - 3:15 p.m.

Design/Logic Flaw

2022-08-2915:15:00
PRIOn knowledge base
www.prio-n.com
11

6.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

0.4%

A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This could allow a malicious unprivileged user inside the guest to gain access to resources accessible to the root group, potentially escalating their privileges within the guest. A malicious local user in the host might also leverage this unexpected executable file created by the guest to escalate their privileges on the host system.

CPENameOperatorVersion
qemueq< 6.2.0-7
enterprise_linuxeq8.0