CVE-2016-4864
First published: Fri May 12 2017(Updated: )
H2O versions 2.0.3 and earlier and 2.1.0-beta2 and earlier allows remote attackers to cause a denial-of-service (DoS) via format string specifiers in a template file via fastcgi, mruby, proxy, redirect or reproxy.
Credit: vultures@jpcert.or.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Dena H20 | >=2.0.0<=2.0.3 | |
| Dena H20 | =2.1.0 | |
| Dena H20 | =2.1.0-beta1 |
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Frequently Asked Questions
What is the severity of CVE-2016-4864?
CVE-2016-4864 is classified as a denial-of-service vulnerability that can significantly impact the availability of the affected H2O server.
How do I fix CVE-2016-4864?
To mitigate CVE-2016-4864, upgrade H2O to version 2.0.4 or later, or 2.1.0-beta3 or later.
What versions are affected by CVE-2016-4864?
CVE-2016-4864 affects H2O versions 2.0.3 and earlier, as well as 2.1.0-beta2 and earlier.
What types of attacks are possible with CVE-2016-4864?
CVE-2016-4864 allows remote attackers to perform denial-of-service attacks through malicious format string specifiers in template files.
Is there a workaround for CVE-2016-4864?
Currently, there is no recommended workaround for CVE-2016-4864 other than upgrading to a secure version of H2O.
- agent/references
- agent/type
- agent/weakness
- agent/severity
- agent/author
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
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- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/dena
- canonical/dena h20
- version/dena h20/2.0.0
- version/dena h20/2.0.3
- version/dena h20/2.1.0
- version/dena h20/2.1.0-beta1