H2O up to 2.2.2 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in H2O up to 2.2.2 and classified as problematic. Impacted is an unknown function. This manipulation causes memory corruption. This vulnerability is registered as CVE-2017-10869. Remote exploitation of the attack is possible. No exploit is available. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability was found in H2O up to 2.2.2. It has been declared as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. The summary by CVE is:

Buffer overflow in H2O version 2.2.2 and earlier allows remote attackers to cause a denial-of-service in the server via unspecified vectors.

The bug was discovered 12/18/2017. The weakness was published 12/22/2017 (Website). It is possible to read the advisory at jvn.jp. This vulnerability is known as CVE-2017-10869 since 07/04/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 104061 (FreeBSD : h2o -- DoS in workers (10c0fabc-b5da-11e7-816e-00bd5d1fff09)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Proper firewalling of is able to address this issue. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104061). Similar entries are available at VDB-110994, VDB-110996 and VDB-110998. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104061
Nessus Name: FreeBSD : h2o -- DoS in workers (10c0fabc-b5da-11e7-816e-00bd5d1fff09)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 860550
OpenVAS Name: H2O HTTP Server Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/04/2017 🔍
10/17/2017 +105 days 🔍
10/23/2017 +6 days 🔍
12/18/2017 +56 days 🔍
12/22/2017 +4 days 🔍
12/22/2017 +0 days 🔍
12/23/2017 +1 days 🔍
01/18/2023 +1852 days 🔍

Sourcesinfo

Product: github.com

Advisory: 1460
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-10869 (🔍)
GCVE (CVE): GCVE-0-2017-10869
GCVE (VulDB): GCVE-100-110995
See also: 🔍

Entryinfo

Created: 12/23/2017 09:40
Updated: 01/18/2023 18:58
Changes: 12/23/2017 09:40 (68), 12/17/2019 13:42 (2), 01/18/2023 18:58 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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