RHSA-2019:3932 - Security Advisory

Topic

Updated packages that provide Red Hat JBoss Core Services Pack Apache Server 2.4.37 and fix several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

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

This release adds the new Apache HTTP Server 2.4.37 packages that are part of the JBoss Core Services offering.

This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.29 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release.

Security Fix(es):

• openssl: RSA key generation cache timing vulnerability in crypto/rsa/rsa_gen.c allows attackers to recover private keys (CVE-2018-0737) * openssl: timing side channel attack in the DSA signature algorithm (CVE-2018-0734) * mod_auth_digest: access control bypass due to race condition (CVE-2019-0217) * openssl: Side-channel vulnerability on SMT/Hyper-Threading architectures (PortSmash) (CVE-2018-5407) * mod_session_cookie does not respect expiry time (CVE-2018-17199) * mod_http2: DoS via slow, unneeded request bodies (CVE-2018-17189) * mod_http2: possible crash on late upgrade (CVE-2019-0197) * mod_http2: read-after-free on a string compare (CVE-2019-0196) * nghttp2: HTTP/2: large amount of data request leads to denial of service (CVE-2019-9511) * nghttp2: HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption (CVE-2019-9513) * mod_http2: HTTP/2: 0-length headers leads to denial of service (CVE-2019-9516) * mod_http2: HTTP/2: request for large response leads to denial of service (CVE-2019-9517)

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

For the update to take effect, all services linked to the OpenSSL library must be restarted, or the system rebooted. After installing the updated packages, the httpd daemon will be restarted automatically.

Affected Products

• Red Hat JBoss Core Services 1 for RHEL 6 x86_64
• Red Hat JBoss Core Services 1 for RHEL 6 i386

Fixes

• BZ - 1568253 - CVE-2018-0737 openssl: RSA key generation cache timing vulnerability in crypto/rsa/rsa_gen.c allows attackers to recover private keys
• BZ - 1644364 - CVE-2018-0734 openssl: timing side channel attack in the DSA signature algorithm
• BZ - 1645695 - CVE-2018-5407 openssl: Side-channel vulnerability on SMT/Hyper-Threading architectures (PortSmash)
• BZ - 1668493 - CVE-2018-17199 httpd: mod_session_cookie does not respect expiry time
• BZ - 1668497 - CVE-2018-17189 httpd: mod_http2: DoS via slow, unneeded request bodies
• BZ - 1695020 - CVE-2019-0217 httpd: mod_auth_digest: access control bypass due to race condition
• BZ - 1695030 - CVE-2019-0196 httpd: mod_http2: read-after-free on a string compare
• BZ - 1695042 - CVE-2019-0197 httpd: mod_http2: possible crash on late upgrade
• BZ - 1735741 - CVE-2019-9513 HTTP/2: flood using PRIORITY frames results in excessive resource consumption
• BZ - 1741860 - CVE-2019-9511 HTTP/2: large amount of data requests leads to denial of service
• BZ - 1741864 - CVE-2019-9516 HTTP/2: 0-length headers lead to denial of service
• BZ - 1741868 - CVE-2019-9517 HTTP/2: request for large response leads to denial of service

CVEs

• CVE-2018-0734
• CVE-2018-0737
• CVE-2018-5407
• CVE-2018-17189
• CVE-2018-17199
• CVE-2019-0196
• CVE-2019-0197
• CVE-2019-0217
• CVE-2019-9511
• CVE-2019-9513
• CVE-2019-9516
• CVE-2019-9517

References

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