CVE-2016-4864 — HIGH (7.5) — White Hats Nepal

Q: How severe is CVE-2016-4864?

CVE-2016-4864 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2016-4864?

Check the references section above for vendor advisories and patch information. Affected products include: Dena H2O.

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Dena	H2O	>= 2.0.0, <= 2.0.3

Related Weaknesses (CWE)

CWE-134

References

https://github.com/h2o/h2o/issues/1077PatchThird Party Advisory
https://jvn.jp/en/jp/JVN94779084/index.htmlThird Party AdvisoryVDB Entry
https://github.com/h2o/h2o/issues/1077PatchThird Party Advisory
https://jvn.jp/en/jp/JVN94779084/index.htmlThird Party AdvisoryVDB Entry

FAQ

What is CVE-2016-4864?

CVE-2016-4864 is a vulnerability with a CVSS score of 7.5 (HIGH). 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, redirec...

How severe is CVE-2016-4864?

CVE-2016-4864 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-4864?

Check the references section above for vendor advisories and patch information. Affected products include: Dena H2O.