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[email protected]CVE-2016-4817

HistoryJun 19, 2016 - 1:59 a.m.

CVE-2016-4817

2016-06-1901:59:00

NVD-CWE-Other

[email protected]

web.nvd.nist.gov

cve

2016

4817

h2o

lib

http2

connection.c

vulnerability

denial of service

use-after-free

application crash

remote attackers

nvd

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.012 Low

EPSS

Percentile

85.3%

JSON

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.

CPENameOperatorVersion
dena:h2odena h2ole1.7.2
dena:h2odena h2ole2.0.0

CPE	Name	Operator	Version
dena:h2o	dena h2o	le	1.7.2
dena:h2o	dena h2o	le	2.0.0

References

jvn.jp/en/jp/JVN87859762/index.html

jvndb.jvn.jp/jvndb/JVNDB-2016-000091

github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4

github.com/h2o/h2o/pull/920

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.012 Low

EPSS

Percentile

85.3%

JSON

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