Gentoo GLSA-201111-06 High: MaraDNS Remote Code Execution
gentoo
November 20, 2011
A buffer overflow vulnerability in MaraDNS allows remote attackers to execute arbitrary code or cause a Denial of Service.
Summary
A long DNS hostname with a large number of labels could trigger a buffer overflow in the compress_add_dlabel_points() function of dns/Compress.c.
Resolution
All MaraDNS users should upgrade to the latest stable version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/maradns-1.4.06"
NOTE: This is a legacy GLSA. Updates for all affected architectures are available since February 12, 2011. It is likely that your system is already no longer affected by this issue.
NOTE: This is a legacy GLSA. Updates for all affected architectures are available since February 12, 2011. It is likely that your system is already no longer affected by this issue.
References
[ 1 ] CVE-2011-0520 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0520
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201111-06
style>.gentoo_availability{display:block;}
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.
PREVIOUS
NEXT
Severity: High
Title: MaraDNS: Arbitrary code execution
Date: November 20, 2011
Bugs: #352569
ID: 201111-06
Background
MaraDNS is a proxy DNS server with permanent caching.
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dns/maradns < 1.4.06 >= 1.4.06
Impact
=====
A remote unauthenticated attacker could execute arbitrary code or cause
a Denial of Service.
Workaround
There is no known workaround at this time.
Related News
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!