RedHat: RHSA-2019-2285:01 Moderate: keepalived security and bug fix update
Summary
The keepalived utility provides simple and robust facilities for load
balancing and high availability. The load balancing framework relies on the
well-known and widely used IP Virtual Server (IPVS) kernel module providing
layer-4 (transport layer) load balancing. Keepalived implements a set of
checkers to dynamically and adaptively maintain and manage a load balanced
server pool according to the health of the servers. Keepalived also
implements the Virtual Router Redundancy Protocol (VRRPv2) to achieve high
availability with director failover.
Security Fix(es):
* keepalived: Improper pathname validation allows for overwrite of
arbitrary filenames via symlinks (CVE-2018-19044)
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 7.7 Release Notes linked from the References section.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2018-19044 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index
Package List
Red Hat Enterprise Linux Server (v. 7):
Source:
keepalived-1.3.5-16.el7.src.rpm
ppc64le:
keepalived-1.3.5-16.el7.ppc64le.rpm
keepalived-debuginfo-1.3.5-16.el7.ppc64le.rpm
x86_64:
keepalived-1.3.5-16.el7.x86_64.rpm
keepalived-debuginfo-1.3.5-16.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
keepalived-1.3.5-16.el7.src.rpm
x86_64:
keepalived-1.3.5-16.el7.x86_64.rpm
keepalived-debuginfo-1.3.5-16.el7.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/
Topic
An update for keepalived is now available for Red Hat Enterprise Linux 7.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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server (v. 7) - ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Bugs Fixed
1651863 - CVE-2018-19044 keepalived: Improper pathname validation allows for overwrite of arbitrary filenames via symlinks
1667292 - vrrp_script broken from v1.3.0 with syntax "
