CVE-2019-9516

HIGH

Description

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

https://lists.fedoraproject.org/archives/list/[email protected]/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/

https://lists.fedoraproject.org/archives/list/[email protected]/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/

https://lists.fedoraproject.org/archives/list/[email protected]/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/

https://lists.fedoraproject.org/archives/list/[email protected]/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/

https://lists.fedoraproject.org/archives/list/[email protected]/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/

https://lists.fedoraproject.org/archives/list/[email protected]fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/

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

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

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

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

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

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

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

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

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

Details

Source: MITRE

Published: 2019-08-13

Updated: 2019-08-23

Type: CWE-400

Risk Information

CVSS v2.0

Base Score: 7.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Vulnerable Software

Configuration 1

AND

cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*

Configuration 6

AND

cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:*

Tenable Plugins

View all (34 total)

ID	Name	Product	Family	Severity
132767	SUSE SLES12 Security Update : nodejs12 (SUSE-SU-2020:0059-1) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	SuSE Local Security Checks	medium
131216	RHEL 7 : JBoss Core Services (RHSA-2019:3933) (0-Length Headers Leak) (Data Dribble) (Internal Data Buffering) (Resource Loop)	Nessus	Red Hat Local Security Checks	medium
131215	RHEL 6 : JBoss Core Services (RHSA-2019:3932) (0-Length Headers Leak) (Data Dribble) (Internal Data Buffering) (Resource Loop)	Nessus	Red Hat Local Security Checks	medium
130401	Amazon Linux 2 : mod_http2 (ALAS-2019-1342) (0-Length Headers Leak) (Data Dribble) (Internal Data Buffering)	Nessus	Amazon Linux Local Security Checks	high
129675	SUSE SLES15 Security Update : nginx (SUSE-SU-2019:2559-1) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	SuSE Local Security Checks	high
129667	openSUSE Security Update : nginx (openSUSE-2019-2264) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	SuSE Local Security Checks	high
129569	Amazon Linux AMI : nginx (ALAS-2019-1299) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	Amazon Linux Local Security Checks	high
129520	RHEL 6 / 7 : Red Hat JBoss Core Services Apache HTTP Server 2.4.29 SP3 (RHSA-2019:2946) (0-Length Headers Leak) (Internal Data Buffering)	Nessus	Red Hat Local Security Checks	high
129514	Oracle Linux 8 : nodejs:10 (ELSA-2019-2925) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	Oracle Linux Local Security Checks	high
129480	RHEL 8 : nodejs:10 (RHSA-2019:2925) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	Red Hat Local Security Checks	high
129443	EulerOS 2.0 SP8 : nginx (EulerOS-SA-2019-2084)	Nessus	Huawei Local Security Checks	high
129089	RHEL 8 : nginx:1.14 (RHSA-2019:2799) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	Red Hat Local Security Checks	high
129087	Oracle Linux 8 : nginx:1.14 (ELSA-2019-2799) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	Oracle Linux Local Security Checks	high
128671	openSUSE Security Update : nginx (openSUSE-2019-2120) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	SuSE Local Security Checks	medium
128669	openSUSE Security Update : nodejs8 (openSUSE-2019-2115) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	SuSE Local Security Checks	high
128668	openSUSE Security Update : nodejs10 (openSUSE-2019-2114) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	SuSE Local Security Checks	high
128544	SUSE SLES15 Security Update : nginx (SUSE-SU-2019:2309-1) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	SuSE Local Security Checks	medium
128482	Fedora 29 : 1:nginx (2019-7a0b45fdc4) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	Fedora Local Security Checks	high
128468	SUSE SLES15 Security Update : nodejs8 (SUSE-SU-2019:2260-1) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	SuSE Local Security Checks	high
128467	SUSE SLES15 Security Update : nodejs10 (SUSE-SU-2019:2259-1) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	SuSE Local Security Checks	high
128436	Fedora 30 : mod_http2 (2019-63ba15cc83) (0-Length Headers Leak) (Data Dribble) (Internal Data Buffering)	Nessus	Fedora Local Security Checks	high
128411	SUSE SLES12 Security Update : nodejs10 (SUSE-SU-2019:2254-1) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	SuSE Local Security Checks	high
128400	Fedora 29 : mod_http2 (2019-4427fd65be) (0-Length Headers Leak) (Data Dribble) (Internal Data Buffering)	Nessus	Fedora Local Security Checks	high
128133	Fedora 29 : 1:nodejs (2019-6a2980de56) (0-Length Headers Leak) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	Fedora Local Security Checks	high
128131	Fedora 30 : 1:nodejs (2019-5a6a7bc12c) (0-Length Headers Leak) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	Fedora Local Security Checks	high
128083	Debian DSA-4505-1 : nginx - security update (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	Debian Local Security Checks	high
128067	Fedora 30 : 1:nginx (2019-befd924cfe) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	Fedora Local Security Checks	high
128043	FreeBSD : Node.js -- multiple vulnerabilities (c97a940b-c392-11e9-bb38-000d3ab229d6) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)	Nessus	FreeBSD Local Security Checks	high
128024	Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : nginx vulnerabilities (USN-4099-1) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	Ubuntu Local Security Checks	high
127950	FreeBSD : NGINX -- Multiple vulnerabilities (87679fcb-be60-11e9-9051-4c72b94353b5) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	FreeBSD Local Security Checks	high
98668	nginx 1.9.5 < 1.16.1 Multiple Vulnerabilties	Web Application Scanning	Component Vulnerability	high
98667	nginx 1.17.x < 1.17.3 Multiple Vulnerabilties	Web Application Scanning	Component Vulnerability	high
127907	nginx 1.9.5 < 1.16.1 / 1.17.x < 1.17.3 Multiple Vulnerabilties	Nessus	Web Servers	high
701146	nginx < 1.16.1 (stable) / 1.17.3 (mainline) Multiple DoS	Nessus Network Monitor	Web Servers	high