VDB-140012 · CVE-2019-9514 · RHSA-2019:2594

HTTP/2 Reset Request resource consumption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in HTTP2. This issue affects some unknown processing of the component Reset Handler. Such manipulation as part of Request leads to resource consumption. This vulnerability is uniquely identified as CVE-2019-9514. The attack can be launched remotely. No exploit exists. This vulnerability is historically impactful due to its background and the reception it garnered. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability was found in HTTP2 (unknown version). It has been rated as critical. Affected by this issue is an unknown code block of the component Reset Handler. The manipulation as part of a Request leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.

The weakness was disclosed 08/13/2019 as not defined mailinglist post (Bugtraq). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2019-9514 since 03/01/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/12/2026). The MITRE ATT&CK project declares the attack technique as T1499. This vulnerability has a historic impact due to its background and reception.

The vulnerability scanner Nessus provides a plugin with the ID 236549 (Alibaba Cloud Linux 3 : 0013: container-tools:rhel8 (ALINUX3-SA-2021:0013)), which helps to determine the existence of the flaw in a target environment.

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the databases at Tenable (236549) and CERT Bund (WID-SEC-2022-0770). The entries VDB-139968, VDB-139969, VDB-139970 and VDB-139971 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Affected

IBM DB2
Red Hat Enterprise Linux
IBM SPSS
EMC Avamar
Hitachi Ops Center

Productinfo

Name

HTTP2

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (CERT/CC): 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 236549
Nessus Name: Alibaba Cloud Linux 3 : 0013: container-tools:rhel8 (ALINUX3-SA-2021:0013)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/01/2019 🔍
08/13/2019 +165 days 🔍
08/15/2019 +2 days 🔍
01/12/2026 +2342 days 🔍

Sourcesinfo

Advisory: RHSA-2019:2594
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-9514 (🔍)
GCVE (CVE): GCVE-0-2019-9514
GCVE (VulDB): GCVE-100-140012
CERT Bund: WID-SEC-2022-0770 - IBM DB2: Mehrere Schwachstellen

See also: 🔍

Entryinfo

Created: 08/15/2019 07:29
Updated: 01/12/2026 02:04
Changes: 08/15/2019 07:29 (58), 07/27/2020 18:52 (1), 11/25/2023 09:15 (4), 11/25/2023 09:20 (12), 01/15/2025 05:57 (16), 05/21/2025 22:16 (2), 01/12/2026 02:04 (7)
Complete: 🔍
Cache ID: 216::103