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Red Hat OpenStack 13: RHSA-2020-5583-01 Moderate Memcached DoS

red hat
Calendar Grey December 16, 2020
Dist Redhat Esm H88
An update concerning security for Memcached within Red Hat OpenStack Platform 13 tackles issues of moderate severity and provides recommended measures.
An update for memcached is now available for Red Hat OpenStack Platform 13 (Queens)

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

memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.
Security Fix(es):
* null-pointer dereference in "lru mode" and "lru temp_ttl" causing denial of service (CVE-2019-11596)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update update DoS security fix Denial of Service memcached Red Hat OpenStack Red Hat OpenStack Platform Memcached

References

https://access.redhat.com/security/cve/CVE-2019-11596 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server:
Source: memcached-1.4.39-3.el7ost.src.rpm
x86_64: memcached-1.4.39-3.el7ost.x86_64.rpm memcached-debuginfo-1.4.39-3.el7ost.x86_64.rpm
Red Hat OpenStack Platform 13.0:
Source: memcached-1.4.39-3.el7ost.src.rpm
ppc64le: memcached-1.4.39-3.el7ost.ppc64le.rpm memcached-debuginfo-1.4.39-3.el7ost.ppc64le.rpm
x86_64: memcached-1.4.39-3.el7ost.x86_64.rpm memcached-debuginfo-1.4.39-3.el7ost.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Advisory ID: RHSA-2020:5583-01
Product: Red Hat OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2020:5583
Issue date: 2020-12-16

Topic

An update for memcached is now available for Red Hat OpenStack Platform 13(Queens).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 update update DoS security fix Denial of Service memcached Red Hat OpenStack Red Hat OpenStack Platform Memcached

Relevant Releases Architectures

Red Hat OpenStack Platform 13.0 - ppc64le, x86_64

Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server - x86_64

Bugs Fixed

1706001 - CVE-2019-11596 memcached: null-pointer dereference in "lru mode" and "lru temp_ttl" causing denial of service

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