GLSA 201207-07: Keepalived: Denial of Service
| Severity: | normal |
| Title: | Keepalived: Denial of Service |
| Date: | 07/09/2012 |
| Bugs: | |
| ID: | 201207-07 |
Synopsis
Keepalived uses world-writable PID files, allowing a local attacker to kill arbitrary processes.Background
Keepalived is a strong & robust keepalive facility to the Linux Virtual Server project.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| sys-cluster/keepalived | < 1.2.2-r3 | >= 1.2.2-r3 | All supported architectures |
Description
The "pidfile_write()" function in pidfile.c in Keepalived writes PID files with insecure permissions.
Impact
A local attacker may be able to cause a Denial of Service of arbitrary processes.
Workaround
There is no known workaround at this time.
Resolution
All Keepalived users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-cluster/keepalived-1.2.2-r3"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.