OpenSSL up to 1.1.0 DTLS statem/statem_dtls.c resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in OpenSSL up to 1.1.0. Affected by this issue is some unknown functionality of the file statem/statem_dtls.c of the component DTLS Handler. This manipulation causes resource management. This vulnerability appears as CVE-2016-6308. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenSSL up to 1.1.0 (Network Encryption Software). It has been declared as problematic. Affected by this vulnerability is some unknown processing of the file statem/statem_dtls.c of the component DTLS Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

statem/statem_dtls.c in the DTLS implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow remote attackers to cause a denial of service (memory consumption) via crafted DTLS messages.

The bug was discovered 09/22/2016. The weakness was presented 09/26/2016 by Shi Lei with Qihoo 360 (Website). It is possible to read the advisory at kb.juniper.net. This vulnerability is known as CVE-2016-6308 since 07/26/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 93816 (OpenSSL 1.1.0 < 1.1.0a Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316384 (Cisco Unity Express OpenSSL Multiple Vulnerabilities (cisco-sa-20160927-openssl)).

Upgrading to version 1.1.0a eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93816) and SecurityFocus (BID 93151†). See VDB-87879, VDB-88080, VDB-90396 and VDB-90937 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 93816
Nessus Name: OpenSSL 1.1.0 < 1.1.0a Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 100026
OpenVAS Name: Junos Multiple OpenSSL Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenSSL 1.1.0a
Patch: df6b5e29ffea2d5a3e08de92fb765fdb21c7a21e

Timelineinfo

07/26/2016 🔍
09/22/2016 +58 days 🔍
09/22/2016 +0 days 🔍
09/23/2016 +1 days 🔍
09/26/2016 +3 days 🔍
09/26/2016 +0 days 🔍
09/27/2016 +1 days 🔍
09/30/2016 +3 days 🔍
09/21/2022 +2182 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: kb.juniper.net
Researcher: Shi Lei
Organization: Qihoo 360
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6308 (🔍)
GCVE (CVE): GCVE-0-2016-6308
GCVE (VulDB): GCVE-100-92203

OVAL: 🔍

SecurityFocus: 93151 - OpenSSL CVE-2016-6308 Denial of Service Vulnerability
SecurityTracker: 1036885

See also: 🔍

Entryinfo

Created: 09/27/2016 10:50
Updated: 09/21/2022 13:58
Changes: 09/27/2016 10:50 (74), 07/07/2019 17:13 (10), 09/21/2022 13:58 (5)
Complete: 🔍
Cache ID: 216:0BC:103

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