Vulnerability Details : 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.
Vulnerability category: Memory CorruptionExecute codeDenial of service
Products affected by CVE-2016-4817
- cpe:2.3:a:dena:h2o:*:beta4:*:*:*:*:*:*
- cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-4817
7.52%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 91 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-4817
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
References for CVE-2016-4817
-
https://github.com/h2o/h2o/pull/920
fix use after free on premature connection close (CVE-2016-4817) by kazuho · Pull Request #920 · h2o/h2o · GitHubVendor Advisory
-
https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4
h2: use after free on premature connection close #920 · h2o/h2o@1c0808d · GitHub
-
http://jvn.jp/en/jp/JVN87859762/index.html
JVN#87859762: H2O use-after-free vulnerabilityVendor Advisory
-
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000091
JVNDB-2016-000091 - JVN iPedia - 脆弱性対策情報データベースVendor Advisory
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