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Fencer Vulns
medium 6.5

CVE-2018-10908 json

It was found that vdsm before version 4.20.37 invokes qemu-img on untrusted inputs without limiting resources.

published 2018-08-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2964

cvss
6.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

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.

Patch / fix

  • ovirt vdsm 4.20.37
  • vdsm RHEL 7 4.20.39-1.el7ev
  • vdsm-api RHEL 7 4.20.39-1.el7ev
  • vdsm-http RHEL 7 4.20.39-1.el7ev
  • vdsm-client RHEL 7 4.20.39-1.el7ev
  • vdsm-common RHEL 7 4.20.39-1.el7ev
  • vdsm-python RHEL 7 4.20.39-1.el7ev
  • vdsm-gluster RHEL 7 4.20.39-1.el7ev
  • vdsm-jsonrpc RHEL 7 4.20.39-1.el7ev

red hat advisories RHEA-2018:2624

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-10908 updated cvss 6.5

vdsm: calls to qemu-img are not protected by prlimit/ulimit

  • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts vdsm 4.20.39-1.el7ev, vdsm-api 4.20.39-1.el7ev, vdsm-http 4.20.39-1.el7ev, vdsm-client 4.20.39-1.el7ev, vdsm-common 4.20.39-1.el7ev, vdsm-python 4.20.39-1.el7ev, +15 more
    fixed: vendor fix RHEA-2018:2624
  • Red Hat Storage 3 vdsm, vdsm-api, vdsm-cli, vdsm-reg, vdsm-http, vdsm-infra, +20 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.19% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.0 6.3 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
NVD 2.0 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C

Affected products

  • [UNKNOWN] vdsm

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.