PT-2016-6161 · H2O · H2O

Tim Newsham · Published 2016-06-19 · Updated 2021-04-19 · CVE-2016-4817

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions H2O versions 1.7.3 and earlier H2O versions 2.x before 2.0.0-beta5

Description The issue is related to the mishandling of HTTP/2 disconnection in the lib/http2/connection.c file. This allows remote attackers to cause a denial of service, resulting in a use-after-free condition and application crash, or possibly execute arbitrary code via a crafted packet.

Recommendations For H2O versions 1.7.3 and earlier, update to version 1.7.3 or later. For H2O versions 2.x before 2.0.0-beta5, update to version 2.0.0-beta5 or later.

Fix

Related Identifiers

CVE-2016-4817

Affected Products

H2O

References · 8

• https://github.com/h2o/h2o/pull/920 · Vendor Advisory
• http://jvn.jp/en/jp/JVN87859762/index.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-4817 · Vendor Advisory
• http://jvndb.jvn.jp/jvndb/JVNDB-2016-000091 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-4817 · Security Note
• https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4 · Note
• https://t.me/cvenotify/13444 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4817 · Note