CVE-2016-4817 Information

Description

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.

CVSS Vector

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

Reference

http://jvn.jp/en/jp/JVN87859762/index.html http://jvndb.jvn.jp/jvndb/JVNDB-2016-000091 https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4 https://github.com/h2o/h2o/pull/920

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5