Critical severity · published Jun 9, 2017
CVE-2016-7835
Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information
9.1
CVSS
2.2%
EPSS
No
On KEV
Description
Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
H2
H2o · Dena
through 2.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-7835
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-7835
Third Party Advisory
http://www.securityfocus.com/bid/95061
Patch
https://github.com/h2o/h2o/issues/1144
Third Party Advisory
https://jvn.jp/en/jp/JVN44566208/index.html
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