CVE-2016-4817

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Source
https://cve.org/CVERecord?id=CVE-2016-4817
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-4817.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2016-4817
Published
2016-06-19T01:59:11Z
Modified
2026-10-20T13:17:07Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/h2o/h2o

Affected ranges

Type
GIT
Repo
https://github.com/h2o/h2o
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
822f6696f5a380d42b2125f3530e2ca997d16d95
Last Affected
788d3dcf683f65acc43a0dd81a75d697574b7656
Fixed
1c0808d580da09fdec5a9a74ff09e103ea058dd4
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "1.7.2"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:dena:h2o:*:beta4:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "2.0.0"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "1c0808d580da09fdec5a9a74ff09e103ea058dd4"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v0.*
v0.9.1
v0.9.2
v1.*
v1.0.1
v1.1.0
v1.1.1
v1.2.0
v1.3.0
v1.3.0-beta1
v1.3.1
v1.4.0
v1.4.1
v1.4.2
v1.5.0
v1.5.0-beta1
v1.5.0-beta2
v1.5.0-beta3
v1.5.0-beta4
v1.5.1
v1.5.2
v1.5.3
v1.6.0
v1.6.0-beta1
v1.6.0-beta2
v1.7.0
v1.7.0-beta1
v1.7.0-beta2
v1.7.0-beta3
v1.7.0-beta4
v1.7.0-beta5
v1.7.1
v1.7.2
v2.*
v2.0.0
v2.0.0-beta1
v2.0.0-beta2
v2.0.0-beta3
v2.0.0-beta4
v2.0.0-beta5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-4817.json"
vanir_signatures 
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        "digest":  {
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            "threshold":  0.9
        },
        "id":  "CVE-2016-4817-59daa686",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4",
        "target":  {
            "file":  "lib/http2/connection.c"
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    {
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        "digest":  {
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            "length":  218
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        "signature_type":  "Function",
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        "source":  "https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4",
        "target":  {
            "file":  "lib/http2/connection.c",
            "function":  "close_connection"
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    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "340094519555268223943403087251481593318",
            "length":  325
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        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4",
        "target":  {
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    {
        "deprecated":  false,
        "digest":  {
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            "length":  1165
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        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4",
        "target":  {
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            "function":  "parse_input"
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    }
]
vanir_signatures_modified 
"2026-10-20T13:17:07Z"