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Fedora 29: 2018-3fbc181b3e High: Keepalived Buffer Overflow Fix

fedora
Calendar Grey December 11, 2018
Dist Fedora Esm H88
Fedora 29 tackles significant security issues within keepalived, emphasizing solutions for buffer overflow concerns and file management improvements.
Security fix for CVE-2018-19044, CVE-2018-19045, CVE-2018-19046, CVE-2018-19115

Summary

Keepalived provides simple and robust facilities for load balancing

and high availability to Linux system and Linux based infrastructures.

The load balancing framework relies on well-known and widely used

Linux Virtual Server (IPVS) kernel module providing Layer4 load

balancing. Keepalived implements a set of checkers to dynamically and

adaptively maintain and manage load-balanced server pool according

their health. High availability is achieved by VRRP protocol. VRRP is

a fundamental brick for router failover. In addition, keepalived

implements a set of hooks to the VRRP finite state machine providing

low-level and high-speed protocol interactions. Keepalived frameworks

can be used independently or all together to provide resilient

infrastructures.

Security fix for CVE-2018-19044, CVE-2018-19045, CVE-2018-19046, CVE-2018-19115

* Mon Nov 26 2018 Ryan O'Hara - 2.0.10-1

- Update to 2.0.10

- Fix improper pathname validation (#1651864, CVE-2018-19044)

- Fix insecure permissions when creating temporary files (#1651868, CVE-2018-19045)

- Fix insecure use of temporary files (#1651870, CVE-2018-19046)

- Fix buffer overflow when parsing HTTP status codes (#1651873, CVE-2018-19047)

[ 1 ] Bug #1651863 - CVE-2018-19044 keepalived: Improper pathname validation allows for overwrite of arbitrary filenames via symlinks

https://bugzilla.redhat.com/show_bug.cgi?id=1651863

[ 2 ] Bug #1651866 - CVE-2018-19045 keepalived: Insecure permissions when creating new temporary files allows for leaking of sensitive data

https://bugzilla.redhat.com/show_bug.cgi?id=1651866

[ 3 ] Bug #1651869 - CVE-2018-19046 keepalived: Insecure use of temporary files allows attackers read sensitive information from pre-existing files

https://bugzilla.redhat.com/show_bug.cgi?id=1651869

[ 4 ] Bug #1651871 - CVE-2018-19115 keepalived: Heap-based buffer overflow when parsing HTTP status codes allows for denial of service or possibly arbitrary code execution

https://bugzilla.redhat.com/show_bug.cgi?id=1651871

su -c 'dnf upgrade --advisory FEDORA-2018-3fbc181b3e' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

package-announce mailing list -- package-announce@lists.fedoraproject.org

To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org

Fedora Code of Conduct: List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines

List Archives: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/

Change Log

References

Update Instructions

Product: Fedora 29
Version: 2.0.10
Release: 1.fc29
Summary: High Availability monitor built upon LVS, VRRP and service pollers

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