Moderate: httpd:2.4 security and bug fix update

Topic

An update for the httpd:2.4 module is now available for Red Hat Enterprise Linux 8.

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

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es):

• httpd: mod_dav: out-of-bounds read/write of zero byte (CVE-2006-20001)
• httpd: mod_proxy_ajp: Possible request smuggling (CVE-2022-36760)
• httpd: mod_proxy: HTTP response splitting (CVE-2022-37436)

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.

Bug Fix(es):

• httpd-init fails to create localhost.crt, localhost.key due to "sscg" default now creates a /dhparams.pem and is not idempotent if the file /dhparams.pem already exists. (BZ#2165967)

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.

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 2161773 - CVE-2022-37436 httpd: mod_proxy: HTTP response splitting
• BZ - 2161774 - CVE-2006-20001 httpd: mod_dav: out-of-bounds read/write of zero byte
• BZ - 2161777 - CVE-2022-36760 httpd: mod_proxy_ajp: Possible request smuggling
• BZ - 2165967 - httpd-init fails to create localhost.crt, localhost.key due to "sscg" default now creates a /dhparams.pem and is not idempotent if the file /dhparams.pem already exists. [rhel-8.7.0.z]

CVEs

• CVE-2006-20001
• CVE-2022-36760
• CVE-2022-37436

References

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