RHSA-2022:1354 - Security Advisory

Topic

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.

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.

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

Affected Products

• dotNET on RHEL (for RHEL Server) 1 x86_64
• dotNET on RHEL (for RHEL Workstation) 1 x86_64
• dotNET on RHEL (for RHEL Compute Node) 1 x86_64

Fixes

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

CVEs

• CVE-2021-22876
• CVE-2021-22924
• CVE-2021-22946
• CVE-2021-22947

References

• https://access.redhat.com/security/updates/classification/#moderate