OpenSSL 1.0.1/1.0.2 Pointer Arithmetic integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in OpenSSL 1.0.1/1.0.2. Affected is an unknown function of the component Pointer Arithmetic. Such manipulation leads to integer overflow. This vulnerability is traded as CVE-2016-2177. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenSSL 1.0.1/1.0.2 (Network Encryption Software) and classified as very critical. Affected by this issue is an unknown functionality of the component Pointer Arithmetic. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability.

The weakness was shared 09/22/2016 by Guido Vranken as 20160922.txt as confirmed advisory (Website). The advisory is shared for download at openssl.org. This vulnerability is handled as CVE-2016-2177 since 01/29/2016. 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 09/20/2022).

The vulnerability scanner Nessus provides a plugin with the ID 95255 (AIX OpenSSL Advisory : openssl_advisory21.asc (SWEET32)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks and running in the context l. 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 1.0.1u or 1.0.2i eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (95255) and SecurityFocus (BID 91319†). The entries VDB-87879, VDB-88080, VDB-90396 and VDB-90937 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Integer overflow
CWE: CWE-190 / CWE-189
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: 95255
Nessus Name: AIX OpenSSL Advisory : openssl_advisory21.asc (SWEET32)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 59958
OpenVAS Name: RedHat Update for openssl RHSA-2016:1940-01
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: OpenSSL 1.0.1u/1.0.2i
Patch: a004e72b95835136d3f1ea90517f706c24c03da7

Timelineinfo

01/29/2016 🔍
05/05/2016 +97 days 🔍
06/19/2016 +45 days 🔍
09/22/2016 +95 days 🔍
09/22/2016 +0 days 🔍
09/23/2016 +1 days 🔍
11/22/2016 +60 days 🔍
09/20/2022 +2128 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: 20160922.txt
Researcher: Guido Vranken
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-2177 (🔍)
GCVE (CVE): GCVE-0-2016-2177
GCVE (VulDB): GCVE-100-91904

OVAL: 🔍

SecurityFocus: 91319 - OpenSSL CVE-2016-2177 Integer Overflow Vulnerability
SecurityTracker: 1036088

See also: 🔍

Entryinfo

Created: 09/23/2016 18:11
Updated: 09/20/2022 10:05
Changes: 09/23/2016 18:11 (71), 04/24/2019 14:34 (13), 09/20/2022 10:05 (7)
Complete: 🔍
Cache ID: 216:553:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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