CVE-2018-1062

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-03-06 · updated 2026-06-17
Weakness: CWE-212

Description

A vulnerability was discovered in oVirt 4.1.x before 4.1.9, where the combination of Enable Discard and Wipe After Delete flags for VM disks managed by oVirt, could cause a disk to be incompletely zeroed when removed from a VM. If the same storage blocks happen to be later allocated to a new disk attached to another VM, potentially sensitive data could be revealed to privileged users of that VM.

Affected products

oVirt: from 4.1.0 before 4.1.9 — fixed in 4.1.9

How to fix

Upgrade to a fixed version: oVirt 4.1.9. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/103433
https://access.redhat.com/errata/RHBA-2018:0135
https://bugzilla.redhat.com/show_bug.cgi?id=1549944
https://gerrit.ovirt.org/#/c/84861/
https://gerrit.ovirt.org/#/c/84875/
http://www.securityfocus.com/bid/103433
https://access.redhat.com/errata/RHBA-2018:0135
https://bugzilla.redhat.com/show_bug.cgi?id=1549944
https://gerrit.ovirt.org/#/c/84861/
https://gerrit.ovirt.org/#/c/84875/

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