VDB-94153 · CVE-2016-7439 · BID 95050

wolfSSL up to 3.9.9 RSA cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in wolfSSL up to 3.9.9 and classified as problematic. This issue affects some unknown processing of the component RSA. This manipulation causes cryptographic issue. This vulnerability appears as CVE-2016-7439. The attack requires local access. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in wolfSSL up to 3.9.9 and classified as problematic. Affected by this vulnerability is an unknown part of the component RSA. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality. The summary by CVE is:

The C software implementation of RSA in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover RSA keys by leveraging cache-bank hit differences.

The bug was discovered 12/22/2016. The weakness was presented 12/13/2016 with Intel (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2016-7439 since 09/09/2016. An attack has to be approached locally. A single authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

Upgrading to version 3.9.10 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95050†). See VDB-94152 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: wolfSSL 3.9.10

Timelineinfo

09/09/2016 🔍
09/26/2016 +17 days 🔍
12/13/2016 +78 days 🔍
12/13/2016 +0 days 🔍
12/13/2016 +0 days 🔍
12/22/2016 +9 days 🔍
06/25/2019 +915 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Organization: Intel
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7439 (🔍)
GCVE (CVE): GCVE-0-2016-7439
GCVE (VulDB): GCVE-100-94153
SecurityFocus: 95050 - wolfSSL CVE-2016-7439 Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 12/13/2016 19:47
Updated: 06/25/2019 09:58
Changes: 12/13/2016 19:47 (58), 06/25/2019 09:58 (6)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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