VDB-91907 · CVE-2016-2181 · BID 92982

OpenSSL 1.0.1/1.0.2 DTLS Replay Protection denial of service

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

Summaryinfo

A vulnerability marked as problematic has been reported in OpenSSL 1.0.1/1.0.2. This affects an unknown part of the component DTLS Replay Protection. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2016-2181. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenSSL 1.0.1/1.0.2 (Network Encryption Software). It has been rated as problematic. This issue affects an unknown code of the component DTLS Replay Protection. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was disclosed 09/22/2016 as 20160922.txt as confirmed advisory (Website). It is possible to read the advisory at openssl.org. The identification of this vulnerability is CVE-2016-2181 since 01/29/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 351322 (Amazon Linux Security Advisory for openssl: AL2012-2018-245).

Upgrading to version 1.0.1u or 1.0.2i eliminates this vulnerability. Applying the patch 1fb9fdc3027b27d8eb6a1e6a846435b070980770 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 92982†). The entries VDB-87879, VDB-88080, VDB-90937 and VDB-90940 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

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: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: 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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: OpenSSL 1.0.1u/1.0.2i
Patch: 1fb9fdc3027b27d8eb6a1e6a846435b070980770

Timelineinfo

01/29/2016 🔍
07/05/2016 +158 days 🔍
09/22/2016 +79 days 🔍
09/22/2016 +0 days 🔍
09/23/2016 +1 days 🔍
08/29/2024 +2897 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: 20160922.txt
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-2181 (🔍)
GCVE (CVE): GCVE-0-2016-2181
GCVE (VulDB): GCVE-100-91907
SecurityFocus: 92982 - OpenSSL CVE-2016-2181 Denial of Service Vulnerability
SecurityTracker: 1036690

See also: 🔍

Entryinfo

Created: 09/23/2016 18:11
Updated: 08/29/2024 04:56
Changes: 09/23/2016 18:11 (48), 07/07/2019 16:45 (5), 09/20/2022 10:33 (4), 09/20/2022 10:38 (18), 08/29/2024 04:56 (16)
Complete: 🔍
Cache ID: 216::103

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

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