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CVE-2019-9516

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Date: August 13, 2019

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.

Language: C

Severity Score

6.5

Related Resources (51)

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/

Url: https://kc.mcafee.com/corporate/index?page=content&id=SB10296

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/

Url: https://security.netapp.com/advisory/ntap-20190823-0002/

Url: https://support.f5.com/csp/article/K02591030

Url: http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html

Url: https://access.redhat.com/errata/RHSA-2019:2939

Url: https://support.f5.com/csp/article/K02591030?utm_source=f5support&utm_medium=RSS

Url: https://usn.ubuntu.com/4099-1/

Url: https://www.debian.org/security/2019/dsa-4505

Url: https://access.redhat.com/errata/RHSA-2019:2799

Url: https://nvd.nist.gov/vuln/detail/CVE-2019-9516

Url: https://access.redhat.com/errata/RHSA-2019:2950

Url: https://access.redhat.com/security/cve/CVE-2019-9516

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2/

Url: http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/

Url: https://access.redhat.com/errata/RHSA-2019:2946

Url: https://access.redhat.com/errata/RHSA-2019:2746

Url: https://access.redhat.com/errata/RHSA-2019:2745

Url: https://seclists.org/bugtraq/2019/Aug/40

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/

Url: https://access.redhat.com/errata/RHSA-2019:3932

Url: https://security-tracker.debian.org/tracker/CVE-2019-9516

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/

Url: https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md

Url: https://security.alpinelinux.org/vuln/CVE-2019-9516

Url: http://seclists.org/fulldisclosure/2019/Aug/16

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/

Url: http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html

Url: https://access.redhat.com/errata/RHSA-2019:2955

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2019-9516

Url: https://seclists.org/bugtraq/2019/Aug/24

Url: http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/

Url: https://access.redhat.com/errata/RHSA-2019:2775

Url: https://security.netapp.com/advisory/ntap-20190823-0005/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/

Url: https://access.redhat.com/errata/RHSA-2019:2966

Url: https://access.redhat.com/errata/RHSA-2019:3933

Url: https://access.redhat.com/errata/RHSA-2019:3935

Url: https://kb.cert.org/vuls/id/605641/

Url: https://www.synology.com/security/advisory/Synology_SA_19_33

Url: https://access.redhat.com/errata/RHSA-2019:2925

Url: https://support.f5.com/csp/article/K02591030?utm_source=f5support&%3Butm_medium=RSS

Url: https://www.mend.io/vulnerability-database/CVE-2019-9516

Severity Score

6.5

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

Upgrade Version

Upgrade to version 1.17.3,1.16.1

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	6.8
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	SINGLE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	COMPLETE
Additional information:

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