Linux · Security advisory · March 10, 2021

ELSA-2021-0788: Security update for 4 packages

ELSA-2021-0788, released March 10, 2021, fixes 1 CVE across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent1 publicly disclosed

CVEs closed

1 rated Critical

Exploited

None reported

Exploitation more likely

Vendor assessment

Highest EPSS

0.3010

98th percentile

Fixed package versions

Product	Release	Fixed in
dotnet-host-fxr-2.1	ol 8	0:2.1.26-1.el8_3
dotnet-runtime-2.1	ol 8	0:2.1.26-1.el8_3
dotnet-sdk-2.1	ol 8	0:2.1.522-1.el8_3
dotnet-sdk-2.1.5xx	ol 8	0:2.1.522-1.el8_3

CVEs this fix closes

Priority	CVE	Title	Impact	CVSS	EPSS	Exploitation
Urgent	CVE-2021-26701	.NET Core Remote Code Execution Vulnerability		9.8	0.3010	DisclosedExploitation Less Likely

Also fixes CVE-2021-26701

ELSA-2021-0793
aspnetcore-runtime-5.0, aspnetcore-targeting-pack-5.0, dotnet and 8 more on ol 8
ELSA-2021-0790
aspnetcore-runtime-3.1, aspnetcore-targeting-pack-3.1, dotnet-apphost-pack-3.1 and 5 more on ol 8
RHSA-2021:0788
dotnet-host-fxr-2.1, dotnet-runtime-2.1, dotnet-sdk-2.1 and 1 more on RHEL 8
RHSA-2021:0790
aspnetcore-runtime-3.1, aspnetcore-targeting-pack-3.1, dotnet-apphost-pack-3.1 and 5 more on RHEL 8
RHSA-2021:0793
aspnetcore-runtime-5.0, aspnetcore-targeting-pack-5.0, dotnet and 8 more on RHEL 8

Vendor advisory

https://linux.oracle.com/errata/ELSA-2021-0788.html

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