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RedHat: RHSA-2021-4257 Moderate: httpd:2.4 Security Update

red hat
Calendar Grey November 9, 2021
Dist Redhat Esm H88
Important update notice for Red Hat's httpd:2.4 module, featuring critical bug resolutions and performance improvements aimed at Enterprise Linux 8 users.
An update for the httpd:2.4 module 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

After installing the updated packages, the httpd daemon will be restarted automatically.

Summary

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.
Security Fix(es):
* httpd: mod_session: NULL pointer dereference when parsing Cookie header (CVE-2021-26690)
* httpd: Unexpected URL matching with 'MergeSlashes OFF' (CVE-2021-30641)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory security issue update bug fix Red Hat Enterprise Linux moderate severity httpd module

References

https://access.redhat.com/security/cve/CVE-2021-26690 https://access.redhat.com/security/cve/CVE-2021-30641 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.5_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: httpd-2.4.37-41.module+el8.5.0+11772+c8e0c271.src.rpm mod_http2-1.15.7-3.module+el8.4.0+8625+d397f3da.src.rpm mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611.src.rpm
aarch64: httpd-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm httpd-debuginfo-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm httpd-debugsource-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm httpd-devel-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm httpd-tools-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm httpd-tools-debuginfo-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm mod_http2-1.15.7-3.module+el8.4.0+8625+d397f3da.aarch64.rpm mod_http2-debuginfo-1.15.7-3.module+el8.4.0+8625+d397f3da.aarch64.rpm mod_http2-debugsource-1.15.7-3.module+el8.4.0+8625+d397f3da.aarch64.rpm mod_ldap-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm mod_ldap-debuginfo-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611.aarch64.rpm mod_md-debuginfo-2.0.8-8.module+el8.3.0+6814+67d1e611.aarch64.rpm mod_md-debugsource-2.0.8-8.module+el8.3.0+6814+67d1e611.aarch64.rpm mod_proxy_html-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm mod_proxy_html-debuginfo-2.4.37-41.module+el8.5.0+11772+c8e0c271.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:4257-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4257
Issue date: 2021-11-09

Topic

An update for the httpd:2.4 module is now available for Red Hat EnterpriseLinux 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 security issue update bug fix Red Hat Enterprise Linux moderate severity httpd module

Relevant Releases Architectures

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

Bugs Fixed

1905613 - mod_ssl does not like valid certificate chain

1934741 - Apache trademark update - new logo

1935742 - [RFE] backport samesite/httponly/secure flags for usertrack

1937334 - SSLProtocol with based virtual hosts

1952557 - mod_proxy_wstunnel.html is a malformed XML

1966729 - CVE-2021-26690 httpd: mod_session: NULL pointer dereference when parsing Cookie header

1966743 - CVE-2021-30641 httpd: Unexpected URL matching with 'MergeSlashes OFF'

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