CVE-2019-9516: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-6gw7-c226-vg73
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CVSS 6.5
CWE-400 CWE-770
Published
Advisory Summary

CVE-2019-9516 is a MODERATE (CVSS 6.5) security vulnerability vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not properly control the allocation and maintenance of a limited resource.. Remediation is available in the latest vendor maintenance releases.

CVE-2019-9516 at a Glance

CVE Identifier CVE-2019-9516
GHSA Identifier GHSA-6gw7-c226-vg73
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2019-9516

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2019-9516, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.

References

NVD — CVE-2019-9516 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-9516
access.redhat.com/errata/rhsa-2019:27... WEB
https://access.redhat.com/errata/RHSA-2019:2745
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD
seclists.org/bugtraq/2019/aug/24 WEB
https://seclists.org/bugtraq/2019/Aug/24
seclists.org/bugtraq/2019/aug/40 WEB
https://seclists.org/bugtraq/2019/Aug/40
Software Security Information SECURITY
https://security.netapp.com/advisory/ntap-20190823-0002
Software Security Information SECURITY
https://security.netapp.com/advisory/ntap-20190823-0005
support.f5.com/csp/article/k025910... WEB
https://support.f5.com/csp/article/K02591030
support.f5.com/csp/article/k025910... WEB
https://support.f5.com/csp/article/K02591030?utm_source=f5support&amp%3Butm_medium=RSS
support.f5.com/csp/article/k025910... WEB
https://support.f5.com/csp/article/K02591030?utm_source=f5support&utm_medium=RSS
usn.ubuntu.com/4099-1 WEB
https://usn.ubuntu.com/4099-1
Software Security Information SECURITY
https://www.debian.org/security/2019/dsa-4505
Software Security Information SECURITY
https://www.synology.com/security/advisory/Synology_SA_19_33
access.redhat.com/errata/rhsa-2019:27... WEB
https://access.redhat.com/errata/RHSA-2019:2746
access.redhat.com/errata/rhsa-2019:27... WEB
https://access.redhat.com/errata/RHSA-2019:2775
access.redhat.com/errata/rhsa-2019:27... WEB
https://access.redhat.com/errata/RHSA-2019:2799
access.redhat.com/errata/rhsa-2019:29... WEB
https://access.redhat.com/errata/RHSA-2019:2925
access.redhat.com/errata/rhsa-2019:29... WEB
https://access.redhat.com/errata/RHSA-2019:2939
access.redhat.com/errata/rhsa-2019:29... WEB
https://access.redhat.com/errata/RHSA-2019:2946
access.redhat.com/errata/rhsa-2019:29... WEB
https://access.redhat.com/errata/RHSA-2019:2950
access.redhat.com/errata/rhsa-2019:29... WEB
https://access.redhat.com/errata/RHSA-2019:2955
access.redhat.com/errata/rhsa-2019:29... WEB
https://access.redhat.com/errata/RHSA-2019:2966
access.redhat.com/errata/rhsa-2019:39... WEB
https://access.redhat.com/errata/RHSA-2019:3932
access.redhat.com/errata/rhsa-2019:39... WEB
https://access.redhat.com/errata/RHSA-2019:3933
access.redhat.com/errata/rhsa-2019:39... WEB
https://access.redhat.com/errata/RHSA-2019:3935
GitHub Advisory / Wiki ADVISORY
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
kb.cert.org/vuls/id/605641 WEB
https://kb.cert.org/vuls/id/605641
kc.mcafee.com/corporate/index WEB
https://kc.mcafee.com/corporate/index?page=content&id=SB10296
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD
Software Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html
Software Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html
Software Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
Software Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html
seclists.org/fulldisclosure/2019... WEB
http://seclists.org/fulldisclosure/2019/Aug/16

Frequently Asked Questions

What is CVE-2019-9516?
CVE-2019-9516 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-400: Uncontrolled Resource Consumption.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2019-9516?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2019-9516?
CVE-2019-9516 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2019-9516?
CVE-2019-9516 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Maven dependencies for CVE-2019-9516?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
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  "id" : "GHSA-6gw7-c226-vg73",
  "modified" : "2025-01-14T21:31:40Z",
  "published" : "2022-05-24T16:53:19Z",
  "aliases" : [ "CVE-2019-9516" ],
  "details" : "Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.",
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  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2019/dsa-4505"
  }, {
    "type" : "WEB",
    "url" : "https://www.synology.com/security/advisory/Synology_SA_19_33"
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  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2019-08-13T21:15:00Z"
  }
}