CVE-2023-1386lowCWE-281

CVE-2023-1386: low-severity vulnerability in qemu

Qemu: 9pfs: suid/sgid bits not dropped on file write

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8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 3.3epss 0.2%
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. When a local user in the guest writes an executable file with SUID or SGID, none of these privileged bits are correctly dropped. As a result, in rare circumstances, this flaw could be used by malicious users in the guest to elevate their privileges within the guest and help a host local user to elevate privileges on the host.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected products
Fedora · Extra Packages for Enterprise LinuxFedora · Fedoran/a · qemuRed Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8 Advanced VirtualizationRed Hat · Red Hat Enterprise Linux 9
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