RHSA-2021:1853: Security update for 4 packages

RHSA-2021:1853, released May 18, 2021, fixes 11 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0269

86th percentile

Priority of the 11 CVEs

Patch now 0
                                Urgent 0
                                High 10
                                Routine 1

Fixed package versions

Product	Release	Fixed in
python3-unbound	RHEL 8	0:1.7.3-15.el8
unbound	RHEL 8	0:1.7.3-15.el8
unbound-devel	RHEL 8	0:1.7.3-15.el8
unbound-libs	RHEL 8	0:1.7.3-15.el8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2019-25032	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	9.8	0.0269	None reported
High	CVE-2019-25034	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	9.8	0.0269	None reported
High	CVE-2019-25035	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	9.8	0.0269	None reported
High	CVE-2019-25039	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	9.8	0.0269	None reported
High	CVE-2019-25042	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	9.8	0.0269	None reported
High	CVE-2019-25038	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	9.8	0.0263	None reported
High	CVE-2019-25037	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	7.5	0.0207	None reported
High	CVE-2019-25041	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	7.5	0.0207	None reported
High	CVE-2019-25036	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	9.8	0.0194	None reported
High	CVE-2019-25040	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	7.5	0.0194	None reported
Routine	CVE-2020-28935	python3-unbound: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver	5.5	0.0049	None reported

Also fixes CVE-2019-25042

libunbound2 1.6.7-1ubuntu2.4
libunbound2 on Ubuntu 18.04.6 LTS (bionic)
libunbound8 1.9.4-2ubuntu1.2
libunbound8 on Ubuntu 20.04 LTS (focal)
python-unbound 1.6.7-1ubuntu2.4
python-unbound on Ubuntu 18.04.6 LTS (bionic)
python-unbound 1.9.4-2ubuntu1.2
python-unbound on Ubuntu 20.04 LTS (focal)
python3-unbound 1.6.7-1ubuntu2.4
python3-unbound on Ubuntu 18.04.6 LTS (bionic)
python3-unbound 1.9.4-2ubuntu1.2
python3-unbound on Ubuntu 20.04 LTS (focal)
unbound 1.6.7-1ubuntu2.4
unbound on Ubuntu 18.04.6 LTS (bionic)
unbound 1.9.4-2ubuntu1.2
unbound on Ubuntu 20.04 LTS (focal)

Vendor advisory

https://access.redhat.com/errata/RHSA-2021:1853

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