CVE-2011-5056
First published: Tue Jan 03 2012(Updated: )
MaraDNS suffers from an error with the hash generation function which can be exploited to cause a hash collision resulting in high CPU consumption (Denial of Service). This flaw has been corrected in versions 1.3.07.13 and 1.4.09. References: <a href="http://samiam.org/blog/20111229.html">http://samiam.org/blog/20111229.html</a> <a href="http://samiam.org/blog/20111230.html">http://samiam.org/blog/20111230.html</a> No CVE has been assigned as of yet.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/maradns | <1.3.07.13 | 1.3.07.13 |
| redhat/maradns | <1.4.09 | 1.4.09 |
| Maradns Project Maradns | <=2.0.04 |
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Reference Links
- http://samiam.org/blog/20111229.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72258
- http://www.securitytracker.com/id?1026820
- http://samiam.org/blog/20111230.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=771435
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=771436
- https://access.redhat.com/security/cve/CVE-2012-0024
- https://access.redhat.com/security/cve/CVE-2011-5055
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-5055
- http://openwall.com/lists/oss-security/2012/01/03/6
- http://openwall.com/lists/oss-security/2012/01/03/13
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=771428
- https://access.redhat.com/security/cve/CVE-2011-5056
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-5056
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0024
- https://bugzilla.redhat.com/show_bug.cgi?id=771428
Frequently Asked Questions
What is the severity of CVE-2011-5056?
CVE-2011-5056 is classified as a Denial of Service vulnerability due to high CPU consumption from hash collisions.
How do I fix CVE-2011-5056?
To fix CVE-2011-5056, upgrade to MaraDNS version 1.3.07.13 or 1.4.09.
Which versions of MaraDNS are affected by CVE-2011-5056?
CVE-2011-5056 affects MaraDNS versions prior to 1.3.07.13 and 1.4.09.
What type of attack does CVE-2011-5056 facilitate?
CVE-2011-5056 facilitates Denial of Service attacks via hash collision exploitation.
Is CVE-2011-5056 related to specific operating systems?
CVE-2011-5056 is related to MaraDNS packages available on Red Hat systems.
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