High severity · published Dec 25, 2019
CVE-2019-19962
wolfSSL before 4.3.0 mishandles calls to wc_SignatureGenerateHash, leading to fault injection in RSA cryptography
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
wolfSSL before 4.3.0 mishandles calls to wc_SignatureGenerateHash, leading to fault injection in RSA cryptography.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
Wolfssl · Wolfssl
before 4.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19962
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-19962
Patch
https://github.com/wolfSSL/wolfssl/commit/23878512c65834d12811b1107d19a001478eca5d
Release Notes
https://github.com/wolfSSL/wolfssl/releases/tag/v4.3.0-stable
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