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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: rh-dotnet31-curl security update
Advisory ID:       RHSA-2022:1354-01
Product:           .NET Core on Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:1354
Issue date:        2022-04-13
CVE Names:         CVE-2021-22876 CVE-2021-22924 CVE-2021-22946 
                   CVE-2021-22947 
=====================================================================

1. Summary:

An update for rh-dotnet31-curl is now available for .NET Core on Red Hat
Enterprise Linux.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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:

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
.NET Core on Red Hat Enterprise Linux Server (v. 7) - x86_64
.NET Core on Red Hat Enterprise Linux Workstation (v. 7) - 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.

Security Fix(es):

* curl: Leak of authentication credentials in URL via automatic Referer
(CVE-2021-22876)

* curl: Bad connection reuse due to flawed path name checks
(CVE-2021-22924)

* curl: Requirement to use TLS not properly enforced for IMAP, POP3, and
FTP protocols (CVE-2021-22946)

* curl: Server responses received before STARTTLS processed after TLS
handshake (CVE-2021-22947)

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/):

1941964 - CVE-2021-22876 curl: Leak of authentication credentials in URL via
 automatic Referer
1981460 - CVE-2021-22924 curl: Bad connection reuse due to flawed path name
 checks
2003175 - CVE-2021-22946 curl: Requirement to use TLS not properly enforced for
 IMAP, POP3, and FTP protocols
2003191 - CVE-2021-22947 curl: Server responses received before STARTTLS
 processed after TLS handshake

6. Package List:

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
rh-dotnet31-curl-7.61.1-22.el7_9.src.rpm

x86_64:
rh-dotnet31-curl-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-curl-debuginfo-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-libcurl-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-libcurl-devel-7.61.1-22.el7_9.x86_64.rpm

.NET Core on Red Hat Enterprise Linux Server (v. 7):

Source:
rh-dotnet31-curl-7.61.1-22.el7_9.src.rpm

x86_64:
rh-dotnet31-curl-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-curl-debuginfo-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-libcurl-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-libcurl-devel-7.61.1-22.el7_9.x86_64.rpm

.NET Core on Red Hat Enterprise Linux Workstation (v. 7):

Source:
rh-dotnet31-curl-7.61.1-22.el7_9.src.rpm

x86_64:
rh-dotnet31-curl-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-curl-debuginfo-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-libcurl-7.61.1-22.el7_9.x86_64.rpm
rh-dotnet31-libcurl-devel-7.61.1-22.el7_9.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-2021-22876
https://access.redhat.com/security/cve/CVE-2021-22924
https://access.redhat.com/security/cve/CVE-2021-22946
https://access.redhat.com/security/cve/CVE-2021-22947
https://access.redhat.com/security/updates/classification/#moderate

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.
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