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RedHatRHSA-2021:2521
HistoryJun 22, 2021 - 1:35 p.m.

(RHSA-2021:2521) Moderate: virt:8.2 and virt-devel:8.2 security update

2021-06-2213:35:00
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64

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

12.0%

The Advanced Virtualization module provides the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.

Security Fix(es):

  • QEMU: msix: OOB access during mmio operations may lead to DoS (CVE-2020-13754)

  • qemu: out-of-bound heap buffer access via an interrupt ID field (CVE-2021-20221)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

OSVersionArchitecturePackageVersionFilename
RedHatanyaarch64nbdkit-debugsource< 1.16.2-4.module+el8.2.1+6710+effcb1dfnbdkit-debugsource-1.16.2-4.module+el8.2.1+6710+effcb1df.aarch64.rpm
RedHatanyppc64lelibvirt-daemon-driver-storage-scsi-debuginfo< 6.0.0-25.5.module+el8.2.1+8680+ea98947blibvirt-daemon-driver-storage-scsi-debuginfo-6.0.0-25.5.module+el8.2.1+8680+ea98947b.ppc64le.rpm
RedHatanyaarch64libvirt-daemon-driver-storage-iscsi-direct< 6.0.0-25.5.module+el8.2.1+8680+ea98947blibvirt-daemon-driver-storage-iscsi-direct-6.0.0-25.5.module+el8.2.1+8680+ea98947b.aarch64.rpm
RedHatanyx86_64python3-hivex-debuginfo< 1.3.18-20.module+el8.2.0+5588+63a201c3python3-hivex-debuginfo-1.3.18-20.module+el8.2.0+5588+63a201c3.x86_64.rpm
RedHatanyx86_64libnbd-devel< 1.2.2-1.module+el8.2.0+5644+32ac38d4libnbd-devel-1.2.2-1.module+el8.2.0+5644+32ac38d4.x86_64.rpm
RedHatanyi686netcf< 0.2.8-12.module+el8.2.0+4793+b09dd2fbnetcf-0.2.8-12.module+el8.2.0+4793+b09dd2fb.i686.rpm
RedHatanyaarch64libvirt-daemon-debuginfo< 6.0.0-25.5.module+el8.2.1+8680+ea98947blibvirt-daemon-debuginfo-6.0.0-25.5.module+el8.2.1+8680+ea98947b.aarch64.rpm
RedHatanyppc64leocaml-libnbd-debuginfo< 1.2.2-1.module+el8.2.0+5644+32ac38d4ocaml-libnbd-debuginfo-1.2.2-1.module+el8.2.0+5644+32ac38d4.ppc64le.rpm
RedHatanyaarch64libvirt-daemon-driver-nwfilter-debuginfo< 6.0.0-25.5.module+el8.2.1+8680+ea98947blibvirt-daemon-driver-nwfilter-debuginfo-6.0.0-25.5.module+el8.2.1+8680+ea98947b.aarch64.rpm
RedHatanyppc64leruby-libguestfs< 1.40.2-24.module+el8.2.1+7154+47ffd890ruby-libguestfs-1.40.2-24.module+el8.2.1+7154+47ffd890.ppc64le.rpm
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How to protect your server from attacks?

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

12.0%

Related for RHSA-2021:2521