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RHEL 8 RHSA-2021-4059-01 Moderate: Curl TLS Enforcement Issues

red hat
Calendar Grey November 2, 2021
Dist Redhat Esm H88
New Curl iteration rolled out for Red Hat Enterprise Linux 8, tackling critical security flaws in communication protocols.
An update for curl is now available for Red Hat Enterprise Linux 8

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

Summary

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.
Security Fix(es):
* 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.

Topics%20covered

Topics Covered

security advisory moderate security fix network protocol curl RHEL TLS enforcement

References

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

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: curl-7.61.1-18.el8_4.2.src.rpm
aarch64: curl-7.61.1-18.el8_4.2.aarch64.rpm curl-debuginfo-7.61.1-18.el8_4.2.aarch64.rpm curl-debugsource-7.61.1-18.el8_4.2.aarch64.rpm curl-minimal-debuginfo-7.61.1-18.el8_4.2.aarch64.rpm libcurl-7.61.1-18.el8_4.2.aarch64.rpm libcurl-debuginfo-7.61.1-18.el8_4.2.aarch64.rpm libcurl-devel-7.61.1-18.el8_4.2.aarch64.rpm libcurl-minimal-7.61.1-18.el8_4.2.aarch64.rpm libcurl-minimal-debuginfo-7.61.1-18.el8_4.2.aarch64.rpm
ppc64le: curl-7.61.1-18.el8_4.2.ppc64le.rpm curl-debuginfo-7.61.1-18.el8_4.2.ppc64le.rpm curl-debugsource-7.61.1-18.el8_4.2.ppc64le.rpm curl-minimal-debuginfo-7.61.1-18.el8_4.2.ppc64le.rpm libcurl-7.61.1-18.el8_4.2.ppc64le.rpm libcurl-debuginfo-7.61.1-18.el8_4.2.ppc64le.rpm libcurl-devel-7.61.1-18.el8_4.2.ppc64le.rpm libcurl-minimal-7.61.1-18.el8_4.2.ppc64le.rpm libcurl-minimal-debuginfo-7.61.1-18.el8_4.2.ppc64le.rpm
s390x: curl-7.61.1-18.el8_4.2.s390x.rpm curl-debuginfo-7.61.1-18.el8_4.2.s390x.rpm curl-debugsource-7.61.1-18.el8_4.2.s390x.rpm curl-minimal-debuginfo-7.61.1-18.el8_4.2.s390x.rpm libcurl-7.61.1-18.el8_4.2.s390x.rpm libcurl-debuginfo-7.61.1-18.el8_4.2.s390x.rpm libcurl-devel-7.61.1-18.el8_4.2.s390x.rpm libcurl-minimal-7.61.1-18.el8_4.2.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:4059-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4059
Issue date: 2021-11-02

Topic

An update for curl is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security fix network protocol curl RHEL TLS enforcement

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

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