Gentoo: GLSA-201207-07: Keepalived: Denial of Service
Summary
The "pidfile_write()" function in pidfile.c in Keepalived writes PID files with insecure permissions.
Resolution
All Keepalived users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot -v ">=sys-cluster/keepalived-1.2.2-r3"
References
[ 1 ] CVE-2011-1784 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1784
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201207-07
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.
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 ------------------------------------------------------------------- 1 sys-cluster/keepalived < 1.2.2-r3 >= 1.2.2-r3
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.