Medium severity · published Dec 13, 2016
CVE-2016-7438
The C software implementation of ECC in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover RSA keys by leveraging cache-bank hit differences
5.5
CVSS
0.4%
EPSS
No
On KEV
Description
The C software implementation of ECC in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover RSA keys by leveraging cache-bank hit differences.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
Wolfssl · Wolfssl
through 3.9.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-7438
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-7438
www.securityfocus.com
http://www.securityfocus.com/bid/95066
Vendor Advisory
https://wolfssl.com/wolfSSL/Blog/Entries/2016/9/26_wolfSSL_3.9.10_Vulnerability_Fixes.html
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