Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2016-4817

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.

Published

2016-06-19T01:59:11.903

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	dena	h2o	≤ 1.7.2	Yes
Application	dena	h2o	≤ 2.0.0	Yes

References

http://jvn.jp/en/jp/JVN87859762/index.html Vendor Advisory ([email protected])
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000091 Vendor Advisory ([email protected])
https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4 ([email protected])
https://github.com/h2o/h2o/pull/920 Vendor Advisory ([email protected])
http://jvn.jp/en/jp/JVN87859762/index.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000091 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/h2o/h2o/pull/920 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)