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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.2300 .NET Core 3.1 security, bug fix, and enhancement update 12 May 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: .NET Core 3.1 Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2022-29145 CVE-2022-29117 CVE-2022-23267 Original Bulletin: https://access.redhat.com/errata/RHSA-2022:2202 Comment: CVSS (Max): 7.5 CVE-2022-29145 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: .NET Core 3.1 security, bug fix, and enhancement update Advisory ID: RHSA-2022:2202-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:2202 Issue date: 2022-05-11 CVE Names: CVE-2022-23267 CVE-2022-29117 CVE-2022-29145 ===================================================================== 1. Summary: An update for .NET Core 3.1 is now available 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. 2. Relevant releases/architectures: Red Hat CodeReady Linux Builder (v. 8) - x86_64 Red Hat Enterprise Linux AppStream (v. 8) - x86_64 3. Description: .NET Core is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. New versions of .NET Core that address a security vulnerability are now available. The updated versions are .NET Core SDK 3.1.419 and .NET Core Runtime 3.1.25. Security Fix(es): * dotnet: excess memory allocation via HttpClient causes DoS (CVE-2022-23267) * dotnet: malicious content causes high CPU and memory usage (CVE-2022-29117) * dotnet: parsing HTML causes Denial of Service (CVE-2022-29145) 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. 4. 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 5. Bugs fixed (https://bugzilla.redhat.com/): 2083647 - CVE-2022-29117 dotnet: malicious content causes high CPU and memory usage 2083649 - CVE-2022-29145 dotnet: parsing HTML causes Denial of Service 2083650 - CVE-2022-23267 dotnet: excess memory allocation via HttpClient causes DoS 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: dotnet3.1-3.1.419-1.el8_6.src.rpm x86_64: aspnetcore-runtime-3.1-3.1.25-1.el8_6.x86_64.rpm aspnetcore-targeting-pack-3.1-3.1.25-1.el8_6.x86_64.rpm dotnet-apphost-pack-3.1-3.1.25-1.el8_6.x86_64.rpm dotnet-apphost-pack-3.1-debuginfo-3.1.25-1.el8_6.x86_64.rpm dotnet-hostfxr-3.1-3.1.25-1.el8_6.x86_64.rpm dotnet-hostfxr-3.1-debuginfo-3.1.25-1.el8_6.x86_64.rpm dotnet-runtime-3.1-3.1.25-1.el8_6.x86_64.rpm dotnet-runtime-3.1-debuginfo-3.1.25-1.el8_6.x86_64.rpm dotnet-sdk-3.1-3.1.419-1.el8_6.x86_64.rpm dotnet-sdk-3.1-debuginfo-3.1.419-1.el8_6.x86_64.rpm dotnet-targeting-pack-3.1-3.1.25-1.el8_6.x86_64.rpm dotnet-templates-3.1-3.1.419-1.el8_6.x86_64.rpm dotnet3.1-debuginfo-3.1.419-1.el8_6.x86_64.rpm dotnet3.1-debugsource-3.1.419-1.el8_6.x86_64.rpm Red Hat CodeReady Linux Builder (v. 8): x86_64: dotnet-apphost-pack-3.1-debuginfo-3.1.25-1.el8_6.x86_64.rpm dotnet-hostfxr-3.1-debuginfo-3.1.25-1.el8_6.x86_64.rpm dotnet-runtime-3.1-debuginfo-3.1.25-1.el8_6.x86_64.rpm dotnet-sdk-3.1-debuginfo-3.1.419-1.el8_6.x86_64.rpm dotnet-sdk-3.1-source-built-artifacts-3.1.419-1.el8_6.x86_64.rpm dotnet3.1-debuginfo-3.1.419-1.el8_6.x86_64.rpm dotnet3.1-debugsource-3.1.419-1.el8_6.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2022-23267 https://access.redhat.com/security/cve/CVE-2022-29117 https://access.redhat.com/security/cve/CVE-2022-29145 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYnw2TNzjgjWX9erEAQiM9A/+JBPm6xW7iFYN+VkWRX4UhDBN9aW8nfqT 9JxtUdAgOVNAhxeZz+UYevvYaN7Ee93iEnuy1qkLnyq1BEpIwJhsB5WVFYCKMR/5 Ev1bL+L+UaJJho9yqk9WPsvC2NT56ix0qdVg7ijmfK200/ZDTD316F73nzCAlB42 fKs0k3iAG7ph8kSp2Z1lC42P3xmEyOCkYFPdHcz5ZgHyTw8gga0Y0bcc0IfOqodC ceETRU47uvtPVJkbKYFc8rF2hmpYCLDOB07LJSxGCZML2/Cds9GRnV3EcrLv/Pi5 CKyL/lD5ScqsEV+/sdyL44aJcV4JRCBKQ/PzdJJHhMccKJBK+eTk7MMme3ugLsBj +qCsI918V/TY1JA3f0IclQPpNlFvsAojOxhvn/4MFcf5X9dH5u+HedmYLzfW7H9x tOMGkOg8+nZWjQT5fnT+pgOGMndBVsi4agBQy7bGnnVEMDfSj6FwI9yt65QI0BAn jrZpU2WgDg9IhpI7lNlgcpgYn5Rw1vc820vNwMobHAUYM6GKw3RQgFfSINysz5/6 ca2otjnaOdfdp3dU3OYg1GvnLVlRvE3Y71191gtAZKU2vmr8lpeYx31iRp3u+lvE xo8ROnOq7MKa6Rv+YxLX8hSPdTd5hje5qWcsYyLliNw7qweDtCixPI4S15thpjMS UwquNOdkn08= =OLmk - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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