Skip to content
Fencer Vulns
medium 6.8

CVE-2016-6338 json

ovirt-engine-webadmin, as used in Red Hat Enterprise Virtualization Manager (aka RHEV-M) for Servers and RHEV-M 4.0, allows physically prox…

published 2017-04-20 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7265

cvss
6.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

ovirt-engine-webadmin, as used in Red Hat Enterprise Virtualization Manager (aka RHEV-M) for Servers and RHEV-M 4.0, allows physically proximate attackers to bypass a webadmin session timeout restriction via vectors related to UI selections, which trigger repeating queries.

Patch / fix

  • rhevm rhev manager 4 4.1.8.2-0.1.el7
  • ovirt-engine rhev manager 4 4.1.8.2-0.1.el7
  • ovirt-engine-lib rhev manager 4 4.1.8.2-0.1.el7
  • ovirt-engine-setup rhev manager 4 4.1.8.2-0.1.el7
  • ovirt-engine-tools rhev manager 4 4.1.8.2-0.1.el7
  • ovirt-engine-backend rhev manager 4 4.1.8.2-0.1.el7
  • ovirt-engine-restapi rhev manager 4 4.1.8.2-0.1.el7
  • ovirt-engine-dbscripts rhev manager 4 4.1.8.2-0.1.el7

red hat advisories RHSA-2017:3427

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-2016-6338 updated cvss 3.8

ovirt-engine: webadmin log out must logout all sessions

  • Red Hat Enterprise Virtualization 3 ovirt-engine
    affected: no fix planned “Will not fix”
  • Red Hat Virtualization Manager 4.1 rhevm 4.1.8.2-0.1.el7, ovirt-engine 4.1.8.2-0.1.el7, ovirt-engine-lib 4.1.8.2-0.1.el7, ovirt-engine-setup 4.1.8.2-0.1.el7, ovirt-engine-tools 4.1.8.2-0.1.el7, ovirt-engine-backend 4.1.8.2-0.1.el7, +14 more
    fixed: vendor fix RHSA-2017:3427

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

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=1369285 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.8 CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

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.