GLSA Advocate
Joined: 12 May 2004 Posts: 2663
|
Posted: Wed Feb 22, 2012 8:26 pm Post subject: [ GLSA 201202-03 ] MaraDNS: Denial of Service |
|
|
Gentoo Linux Security Advisory
Title: MaraDNS: Denial of Service (GLSA 201202-03)
Severity: normal
Exploitable: remote
Date: February 22, 2012
Bug(s): #397431
ID: 201202-03
Synopsis
A hash collision vulnerability in MaraDNS allows remote attackers
to cause a Denial of Service condition.
Background
MaraDNS is a proxy DNS server with permanent caching.
Affected Packages
Package: net-dns/maradns
Vulnerable: < 1.4.09
Unaffected: >= 1.4.09
Architectures: All supported architectures
Description
MaraDNS does not properly randomize hash functions to protect against
hash collision attacks.
Impact
A remote attacker could send many specially crafted DNS recursive
queries, possibly resulting in a Denial of Service condition.
Workaround
There is no known workaround at this time.
Resolution
All MaraDNS users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/maradns-1.4.09"
|
References
CVE-2012-0024 |
|