CVE-2018-10908

Severity: medium (CVSS 6.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-08-09 · updated 2026-06-17
Weakness: CWE-20

Description

It was found that vdsm before version 4.20.37 invokes qemu-img on untrusted inputs without limiting resources. By uploading a specially crafted image, an attacker could cause the qemu-img process to consume unbounded amounts of memory of CPU time, causing a denial of service condition that could potentially impact other users of the host.

Affected products

vdsm: before 4.20.37 — fixed in 4.20.37
RedHat Virtualization: 4.0

How to fix

Upgrade to a fixed version: vdsm 4.20.37. Check the vendor advisory for mitigations.

References

http://lists.nongnu.org/archive/html/qemu-block/2018-07/msg00488.html
https://access.redhat.com/errata/RHEA-2018:2624
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10908
https://gerrit.ovirt.org/#/c/93195/
http://lists.nongnu.org/archive/html/qemu-block/2018-07/msg00488.html
https://access.redhat.com/errata/RHEA-2018:2624
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10908
https://gerrit.ovirt.org/#/c/93195/

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