RHSA-2021:3142: Security update for 8 packages

RHSA-2021:3142, released August 11, 2021, fixes 3 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.5

Base score, 0 to 10

Highest EPSS

0.0390

90th percentile

Priority of the 3 CVEs

Patch now 0
                                Urgent 0
                                High 1
                                Routine 2

Fixed package versions

Product	Release	Fixed in
aspnetcore-runtime-3.1	RHEL 8	0:3.1.18-1.el8_4
aspnetcore-targeting-pack-3.1	RHEL 8	0:3.1.18-1.el8_4
dotnet-apphost-pack-3.1	RHEL 8	0:3.1.18-1.el8_4
dotnet-hostfxr-3.1	RHEL 8	0:3.1.18-1.el8_4
dotnet-runtime-3.1	RHEL 8	0:3.1.18-1.el8_4
dotnet-sdk-3.1	RHEL 8	0:3.1.118-1.el8_4
dotnet-targeting-pack-3.1	RHEL 8	0:3.1.18-1.el8_4
dotnet-templates-3.1	RHEL 8	0:3.1.118-1.el8_4

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2021-26423	.NET Core and Visual Studio Denial of Service Vulnerability	7.5	0.0390	Exploitation Less Likely
Routine	CVE-2021-34485	.NET Core and Visual Studio Information Disclosure Vulnerability	5.5	0.0207	Exploitation Less Likely
Routine	CVE-2021-34532	ASP.NET Core and Visual Studio Information Disclosure Vulnerability	5.5	0.0122	Exploitation Less Likely

Also fixes CVE-2021-26423

ELSA-2021-3142
aspnetcore-runtime-3.1, aspnetcore-targeting-pack-3.1, dotnet-apphost-pack-3.1 and 5 more on ol 8
ELSA-2021-3148
aspnetcore-runtime-5.0, aspnetcore-targeting-pack-5.0, dotnet and 8 more on ol 8
RHSA-2021:3148
aspnetcore-runtime-5.0, aspnetcore-targeting-pack-5.0, dotnet and 8 more on RHEL 8

Vendor advisory

https://access.redhat.com/errata/RHSA-2021:3142

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