Issued:: 2021-02-03
Updated:: 2021-02-03

RHSA-2021:0401 - Important: Red Hat Virtualization Host security bug fix and enhancement update [ovirt-4.4.4]

Synopsis

Important: Red Hat Virtualization Host security bug fix and enhancement update [ovirt-4.4.4]

Type/Severity

Security Advisory Important

Topic

An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.

Security Fix(es):

sudo: Heap buffer overflow in argument parsing (CVE-2021-3156)
dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25684)
dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25685)
dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker (CVE-2020-25686)

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.

Bug Fix(es):

Previously, the Red Hat Virtualization Host (RHV-H) repository (rhvh-4-for-rhel-8-x86_64-rpms) did not include the libsmbclient package, which is a dependency for the sssd-ad package. Consequently, the sssd-ad package failed to install.

With this update, the libsmbclient is now in the RHV-H repository, and sssd-ad now installs on RHV-H. (BZ#1868967)

Solution

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

https://access.redhat.com/articles/2974891

After installing this update, the smb service will be restarted automatically.

Affected Products

Product	Version	Arch
Red Hat Virtualization	4	x86_64
Red Hat Virtualization Host	4	x86_64

Updated Packages

cockpit-ovirt-0.14.17-1.el8ev.src.rpm
redhat-virtualization-host-4.4.4-20210201.0.el8_3.src.rpm
sssd-krb5-debuginfo-2.3.0-9.el8.x86_64.rpm
libsss_sudo-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-2.3.0-9.el8.src.rpm
libsss_simpleifp-debuginfo-2.3.0-9.el8.x86_64.rpm
libsss_certmap-2.3.0-9.el8.x86_64.rpm
sssd-common-pac-debuginfo-2.3.0-9.el8.x86_64.rpm
imgbased-1.2.16-0.1.el8ev.src.rpm
sssd-proxy-2.3.0-9.el8.x86_64.rpm
sssd-winbind-idmap-debuginfo-2.3.0-9.el8.x86_64.rpm
libsss_nss_idmap-debuginfo-2.3.0-9.el8.x86_64.rpm
python3-libipa_hbac-debuginfo-2.3.0-9.el8.x86_64.rpm
cockpit-ovirt-dashboard-0.14.17-1.el8ev.noarch.rpm
sssd-tools-2.3.0-9.el8.x86_64.rpm
samba-4.12.3-12.el8.3.src.rpm
sssd-client-2.3.0-9.el8.x86_64.rpm
sssd-tools-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-ad-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-2.3.0-9.el8.x86_64.rpm
sssd-dbus-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-nfs-idmap-2.3.0-9.el8.x86_64.rpm
python3-sss-debuginfo-2.3.0-9.el8.x86_64.rpm
python3-sssdconfig-2.3.0-9.el8.noarch.rpm
redhat-release-virtualization-host-4.4.4-1.el8ev.x86_64.rpm
sssd-debuginfo-2.3.0-9.el8.x86_64.rpm
redhat-release-virtualization-host-4.4.4-1.el8ev.src.rpm
libsss_simpleifp-2.3.0-9.el8.x86_64.rpm
sssd-ldap-debuginfo-2.3.0-9.el8.x86_64.rpm
redhat-virtualization-host-image-update-4.4.4-20210201.0.el8_3.noarch.rpm
python3-sss-murmur-2.3.0-9.el8.x86_64.rpm
sssd-kcm-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-krb5-common-2.3.0-9.el8.x86_64.rpm
sssd-polkit-rules-2.3.0-9.el8.x86_64.rpm
libsss_nss_idmap-2.3.0-9.el8.x86_64.rpm
libsss_autofs-2.3.0-9.el8.x86_64.rpm
python3-imgbased-1.2.16-0.1.el8ev.noarch.rpm
python3-sss-2.3.0-9.el8.x86_64.rpm
redhat-virtualization-host-image-update-placeholder-4.4.4-1.el8ev.noarch.rpm
sssd-libwbclient-debuginfo-2.3.0-9.el8.x86_64.rpm
python3-libsss_nss_idmap-2.3.0-9.el8.x86_64.rpm
sssd-common-2.3.0-9.el8.x86_64.rpm
samba-debugsource-4.12.3-12.el8.3.x86_64.rpm
sssd-kcm-2.3.0-9.el8.x86_64.rpm
libsss_autofs-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-nfs-idmap-debuginfo-2.3.0-9.el8.x86_64.rpm
libipa_hbac-2.3.0-9.el8.x86_64.rpm
sssd-dbus-2.3.0-9.el8.x86_64.rpm
python3-libsss_nss_idmap-debuginfo-2.3.0-9.el8.x86_64.rpm
libsss_idmap-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-ldap-2.3.0-9.el8.x86_64.rpm
sssd-client-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-proxy-debuginfo-2.3.0-9.el8.x86_64.rpm
libsss_certmap-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-common-pac-2.3.0-9.el8.x86_64.rpm
libsss_sudo-2.3.0-9.el8.x86_64.rpm
libsmbclient-debuginfo-4.12.3-12.el8.3.x86_64.rpm
sssd-libwbclient-2.3.0-9.el8.x86_64.rpm
sssd-ipa-debuginfo-2.3.0-9.el8.x86_64.rpm
sssd-ad-2.3.0-9.el8.x86_64.rpm
libipa_hbac-debuginfo-2.3.0-9.el8.x86_64.rpm
python3-sss-murmur-debuginfo-2.3.0-9.el8.x86_64.rpm
python3-libipa_hbac-2.3.0-9.el8.x86_64.rpm
sssd-debugsource-2.3.0-9.el8.x86_64.rpm
sssd-ipa-2.3.0-9.el8.x86_64.rpm
sssd-winbind-idmap-2.3.0-9.el8.x86_64.rpm
libsss_nss_idmap-devel-2.3.0-9.el8.x86_64.rpm
samba-debuginfo-4.12.3-12.el8.3.x86_64.rpm
sssd-common-debuginfo-2.3.0-9.el8.x86_64.rpm
libsss_idmap-2.3.0-9.el8.x86_64.rpm
libsmbclient-4.12.3-12.el8.3.x86_64.rpm
sssd-krb5-2.3.0-9.el8.x86_64.rpm
sssd-krb5-common-debuginfo-2.3.0-9.el8.x86_64.rpm
imgbased-1.2.16-0.1.el8ev.noarch.rpm

Fixes

CVEs

References

Additional information

The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
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