Use After Free Affecting libvirt-daemon-driver-storage-scsi package, versions <0:5.7.0-34.el7


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.15% (52nd percentile)

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  • Snyk ID SNYK-ORACLE7-LIBVIRTDAEMONDRIVERSTORAGESCSI-2964866
  • published 18 May 2022
  • disclosed 23 Aug 2022

How to fix?

Upgrade Oracle:7 libvirt-daemon-driver-storage-scsi to version 0:5.7.0-34.el7 or higher.
This issue was patched in ELSA-2022-9668.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt-daemon-driver-storage-scsi package and not the libvirt-daemon-driver-storage-scsi package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.

CVSS Scores

version 3.1
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NVD

6.5 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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SUSE

4.4 medium
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Red Hat

5.3 medium