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libvirt: missing locking in nwfilterConnectNumOfNWFilters can lead to denial of service

🗓️ 08 Nov 2022 09:49:44Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 11 Views

Libvirt nwfilter driver lacks locking in virConnectNumOfNWFilters, enabling denial of service.

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Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8anyslof0:20210217-1.module+el8.7.0+16689+53d59bc2.noarchSLOF-0:20210217-1.module+el8.7.0+16689+53d59bc2.noarch.noarch.rpm
Red Hat Enterprise Linux8aarch64hivex0:1.3.18-23.module+el8.7.0+16689+53d59bc2hivex-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.aarch64.rpm
Red Hat Enterprise Linux8ppc64lehivex0:1.3.18-23.module+el8.7.0+16689+53d59bc2hivex-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.ppc64le.rpm
Red Hat Enterprise Linux8s390xhivex0:1.3.18-23.module+el8.7.0+16689+53d59bc2hivex-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.s390x.rpm
Red Hat Enterprise Linux8x86_64hivex0:1.3.18-23.module+el8.7.0+16689+53d59bc2hivex-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.x86_64.rpm
Red Hat Enterprise Linux8anyhivex0:1.3.18-23.module+el8.7.0+16689+53d59bc2.i686hivex-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.i686.noarch.rpm
Red Hat Enterprise Linux8aarch64hivex-debuginfo0:1.3.18-23.module+el8.7.0+16689+53d59bc2hivex-debuginfo-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.aarch64.rpm
Red Hat Enterprise Linux8ppc64lehivex-debuginfo0:1.3.18-23.module+el8.7.0+16689+53d59bc2hivex-debuginfo-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.ppc64le.rpm
Red Hat Enterprise Linux8s390xhivex-debuginfo0:1.3.18-23.module+el8.7.0+16689+53d59bc2hivex-debuginfo-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.s390x.rpm
Red Hat Enterprise Linux8x86_64hivex-debuginfo0:1.3.18-23.module+el8.7.0+16689+53d59bc2hivex-debuginfo-0:1.3.18-23.module+el8.7.0+16689+53d59bc2.x86_64.rpm
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28 Jun 2026 09:04Current
6.4Medium risk
Vulners AI Score6.4
CVSS 24
CVSS 3.14.3
EPSS0.01024
SSVC
11