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CVE-2016-4817

Date: June 18, 2016

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.

Language: C

Severity Score

Related Resources (6)

http://jvn.jp/en/jp/JVN87859762/index.html
https://github.com/h2o/h2o/pull/920
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000091
https://nvd.nist.gov/vuln/detail/CVE-2016-4817
https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4
https://www.mend.io/vulnerability-database/CVE-2016-4817

Severity Score

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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