CVE-2016-4817
moderate-risk
Published 2016-06-19
lib/http2/connection.c in H2O before 1.7.3 and 2.x before 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly execute arbitrary code via a crafted packet.
Do I need to act?
~
8.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (2)
H2O
H2O
Affected Vendors
References (8)
Vendor Advisory
http://jvn.jp/en/jp/JVN87859762/index.html
Vendor Advisory
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000091
Vendor Advisory
https://github.com/h2o/h2o/pull/920
Vendor Advisory
http://jvn.jp/en/jp/JVN87859762/index.html
Vendor Advisory
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000091
Vendor Advisory
https://github.com/h2o/h2o/pull/920
43
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
10/34 · Low
Exposure
7/34 · Low