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RedHat: RHSA-2020-4676-01 Moderate: virt Modules Vulnerabilities

red hat
Calendar Grey November 3, 2020
Dist Redhat Esm H88
Red Hat has issued a moderate security update concerning virt components, addressing multiple vulnerabilities that impact RHEL.
An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.
The following packages have been upgraded to a later upstream version: hivex (1.3.18), libguestfs (1.40.2), libguestfs-winsupport (8.2), libvirt (6.0.0), libvirt-dbus (1.3.0), libvirt-python (6.0.0), nbdkit (1.16.2), perl-Sys-Virt (6.0.0), qemu-kvm (4.2.0), seabios (1.13.0), SLOF (20191022). (BZ#1810193, BZ#1844296)
Security Fix(es):
* libvirt: leak of /dev/mapper/control into QEMU guests (CVE-2020-14339)
* QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890)
* libvirt: Potential DoS by holding a monitor job while querying QEMU guest-agent (CVE-2019-20485)
* QEMU: slirp: use-after-free in ip_reass() function in ip_input.c (CVE-2020-1983)
* libvirt: Potential denial of service via active pool without target path (CVE-2020-10703)
* libvirt: leak of sensitive cookie information via dumpxml (CVE-2020-14301)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory update red hat vulnerability modest severity deny service virt

References

https://access.redhat.com/security/cve/CVE-2019-15890 https://access.redhat.com/security/cve/CVE-2019-20485 https://access.redhat.com/security/cve/CVE-2020-1983 https://access.redhat.com/security/cve/CVE-2020-10703 https://access.redhat.com/security/cve/CVE-2020-14301 https://access.redhat.com/security/cve/CVE-2020-14339 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: SLOF-20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418.src.rpm hivex-1.3.18-20.module+el8.3.0+6423+e4cb6418.src.rpm libguestfs-1.40.2-25.module+el8.3.0+7421+642fe24f.src.rpm libguestfs-winsupport-8.2-1.module+el8.3.0+6423+e4cb6418.src.rpm libiscsi-1.18.0-8.module+el8.1.0+4066+0f1aadab.src.rpm libnbd-1.2.2-1.module+el8.3.0+7353+9de0a3cc.src.rpm libvirt-6.0.0-28.module+el8.3.0+7827+5e65edd7.src.rpm libvirt-dbus-1.3.0-2.module+el8.3.0+6423+e4cb6418.src.rpm libvirt-python-6.0.0-1.module+el8.3.0+6423+e4cb6418.src.rpm nbdkit-1.16.2-4.module+el8.3.0+6922+fd575af8.src.rpm netcf-0.2.8-12.module+el8.1.0+4066+0f1aadab.src.rpm perl-Sys-Virt-6.0.0-1.module+el8.3.0+6423+e4cb6418.src.rpm qemu-kvm-4.2.0-34.module+el8.3.0+7976+077be4ec.src.rpm seabios-1.13.0-2.module+el8.3.0+7353+9de0a3cc.src.rpm sgabios-0.20170427git-3.module+el8.1.0+4066+0f1aadab.src.rpm supermin-5.1.19-10.module+el8.3.0+6423+e4cb6418.src.rpm
aarch64: hivex-1.3.18-20.module+el8.3.0+6423+e4cb6418.aarch64.rpm hivex-debuginfo-1.3.18-20.module+el8.3.0+6423+e4cb6418.aarch64.rpm hivex-debugsource-1.3.18-20.module+el8.3.0+6423+e4cb6418.aarch64.rpm hivex-devel-1.3.18-20.module+el8.3.0+6423+e4cb6418.aarch64.rpm libguestfs-1.40.2-25.module+el8.3.0+7421+642fe24f.aarch64.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:4676-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4676
Issue date: 2020-11-03

Topic

An update for the virt:rhel and virt-devel:rhel modules is now availablefor Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory update red hat vulnerability modest severity deny service virt

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1518042 - Black txt window keeps after deleting description for a guest

1664324 - Failed to attach scsi controller with option "--config --live" when index attribute isn't specified in XML

1715039 - Set proper build flags for libvirt-python due to changes in distutils

1717394 - RFE: add cgroups v2 BPF devices support

1727865 - Initialization of cyrus-sasl library is not thread safe causing libvirt client crashes

1749716 - CVE-2019-15890 QEMU: Slirp: use-after-free during packet reassembly

1756946 - [zKVM] Re-enable KVM_CAP_S390_AIS for new machine types

1759849 - virsh domcapabilities incorrectly includes usb on s390x

1763191 - Silent failure adding ps2 input device on s390x

1790189 - libvirt should not use usb bus on s390x by default for devices declared via tags

1805998 - [RFE] Pull Libvirt 5.6 dnsmasq feature into RHEL 8

1807057 - qcow2_alloc_cluster_abort() frees preallocated zero clusters1809740 - CVE-2019-20485 libvirt: Potential DoS by holding a monitor job while querying QEMU guest-agent

1810193 - Upgrade components in virt:rhel module:stream for RHEL-8.3 release

1811539 - The virt-diff command doesn't work on windows 2019 image

1816650 - CVE-2020-10703 libvirt: Potential denial of service via active pool without target path

1828681 - Unable to initialize gcrypt will prevent qemu related commands from running

1829825 - CVE-2020-1983 QEMU: slirp: use-after-free in ip_reass() function in ip_input.c

Read the Full Advisory

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