Improper Locking Affecting libguestfs-rsync package, versions <1:1.40.2-28.0.4.module+el8.5.0+20645+1693a26d


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.09% (40th percentile)

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  • Snyk ID SNYK-ORACLE8-LIBGUESTFSRSYNC-2859275
  • published 27 May 2022
  • disclosed 25 Mar 2022

How to fix?

Upgrade Oracle:8 libguestfs-rsync to version 1:1.40.2-28.0.4.module+el8.5.0+20645+1693a26d or higher.
This issue was patched in ELSA-2022-9460.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libguestfs-rsync package and not the libguestfs-rsync package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).

CVSS Scores

version 3.1
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NVD

4.3 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)
    Low
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SUSE

5.5 medium
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Red Hat

5 medium