Vulnerability Details CVE-2019-13628
wolfSSL and wolfCrypt 4.0.0 and earlier (when configured without --enable-fpecc, --enable-sp, or --enable-sp-math) contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about the nonces used and potentially mount a lattice attack to recover the private key used. The issue occurs because ecc.c scalar multiplication might leak the bit length.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 35.9%
CVSS Severity
CVSS v3 Score 4.7
CVSS v2 Score 1.2
References
- http://www.openwall.com/lists/oss-security/2019/10/02/2
- https://eprint.iacr.org/2011/232.pdf
- https://minerva.crocs.fi.muni.cz/
- https://tches.iacr.org/index.php/TCHES/article/view/7337
- http://www.openwall.com/lists/oss-security/2019/10/02/2
- https://eprint.iacr.org/2011/232.pdf
- https://minerva.crocs.fi.muni.cz/
- https://tches.iacr.org/index.php/TCHES/article/view/7337
Products affected by CVE-2019-13628
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cpe:2.3:a:wolfssl:wolfssl:-
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cpe:2.3:a:wolfssl:wolfssl:0.5
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cpe:2.3:a:wolfssl:wolfssl:1.8.8.0
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cpe:2.3:a:wolfssl:wolfssl:1.9.0
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cpe:2.3:a:wolfssl:wolfssl:2.0.2
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cpe:2.3:a:wolfssl:wolfssl:2.0.3
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cpe:2.3:a:wolfssl:wolfssl:2.0.6
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cpe:2.3:a:wolfssl:wolfssl:2.0.8
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cpe:2.3:a:wolfssl:wolfssl:2.1.1
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cpe:2.3:a:wolfssl:wolfssl:2.1.2
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cpe:2.3:a:wolfssl:wolfssl:2.1.4
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cpe:2.3:a:wolfssl:wolfssl:2.2.0
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cpe:2.3:a:wolfssl:wolfssl:2.2.1
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cpe:2.3:a:wolfssl:wolfssl:2.2.2
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cpe:2.3:a:wolfssl:wolfssl:2.3.0
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cpe:2.3:a:wolfssl:wolfssl:2.4.0
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cpe:2.3:a:wolfssl:wolfssl:2.4.2
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cpe:2.3:a:wolfssl:wolfssl:2.4.6
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cpe:2.3:a:wolfssl:wolfssl:2.4.7
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cpe:2.3:a:wolfssl:wolfssl:2.5.0
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cpe:2.3:a:wolfssl:wolfssl:2.5.2
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cpe:2.3:a:wolfssl:wolfssl:2.6.0
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cpe:2.3:a:wolfssl:wolfssl:2.6.2
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cpe:2.3:a:wolfssl:wolfssl:2.7.0
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cpe:2.3:a:wolfssl:wolfssl:2.7.2
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cpe:2.3:a:wolfssl:wolfssl:2.8.0
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cpe:2.3:a:wolfssl:wolfssl:2.8.2
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cpe:2.3:a:wolfssl:wolfssl:2.8.3
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cpe:2.3:a:wolfssl:wolfssl:2.8.4
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cpe:2.3:a:wolfssl:wolfssl:2.8.5
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cpe:2.3:a:wolfssl:wolfssl:2.8.6
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cpe:2.3:a:wolfssl:wolfssl:2.9.0
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cpe:2.3:a:wolfssl:wolfssl:2.9.1
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cpe:2.3:a:wolfssl:wolfssl:2.9.2
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cpe:2.3:a:wolfssl:wolfssl:2.9.4
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cpe:2.3:a:wolfssl:wolfssl:3.0.0
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cpe:2.3:a:wolfssl:wolfssl:3.0.2
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cpe:2.3:a:wolfssl:wolfssl:3.1.0
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cpe:2.3:a:wolfssl:wolfssl:3.10.0
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cpe:2.3:a:wolfssl:wolfssl:3.10.0a
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cpe:2.3:a:wolfssl:wolfssl:3.10.2
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cpe:2.3:a:wolfssl:wolfssl:3.10.3
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cpe:2.3:a:wolfssl:wolfssl:3.10.4
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cpe:2.3:a:wolfssl:wolfssl:3.11.0
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cpe:2.3:a:wolfssl:wolfssl:3.11.1
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cpe:2.3:a:wolfssl:wolfssl:3.12.0
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cpe:2.3:a:wolfssl:wolfssl:3.12.2
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cpe:2.3:a:wolfssl:wolfssl:3.13.0
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cpe:2.3:a:wolfssl:wolfssl:3.13.2
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cpe:2.3:a:wolfssl:wolfssl:3.13.3
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cpe:2.3:a:wolfssl:wolfssl:3.14.0
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cpe:2.3:a:wolfssl:wolfssl:3.14.2
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cpe:2.3:a:wolfssl:wolfssl:3.14.4
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cpe:2.3:a:wolfssl:wolfssl:3.14.5
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cpe:2.3:a:wolfssl:wolfssl:3.15.0
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cpe:2.3:a:wolfssl:wolfssl:3.15.3
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cpe:2.3:a:wolfssl:wolfssl:3.15.5
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cpe:2.3:a:wolfssl:wolfssl:3.15.6
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cpe:2.3:a:wolfssl:wolfssl:3.15.7
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cpe:2.3:a:wolfssl:wolfssl:3.15.8
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cpe:2.3:a:wolfssl:wolfssl:3.2.0
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cpe:2.3:a:wolfssl:wolfssl:3.2.4
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cpe:2.3:a:wolfssl:wolfssl:3.2.6
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cpe:2.3:a:wolfssl:wolfssl:3.3.0
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cpe:2.3:a:wolfssl:wolfssl:3.3.2
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cpe:2.3:a:wolfssl:wolfssl:3.3.3
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cpe:2.3:a:wolfssl:wolfssl:3.4.0
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cpe:2.3:a:wolfssl:wolfssl:3.4.2
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cpe:2.3:a:wolfssl:wolfssl:3.4.6
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cpe:2.3:a:wolfssl:wolfssl:3.4.8
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cpe:2.3:a:wolfssl:wolfssl:3.6.0
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cpe:2.3:a:wolfssl:wolfssl:3.6.2
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cpe:2.3:a:wolfssl:wolfssl:3.6.6
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cpe:2.3:a:wolfssl:wolfssl:3.6.8
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cpe:2.3:a:wolfssl:wolfssl:3.6.9
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cpe:2.3:a:wolfssl:wolfssl:3.7.0
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cpe:2.3:a:wolfssl:wolfssl:3.7.1
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cpe:2.3:a:wolfssl:wolfssl:3.7.3
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cpe:2.3:a:wolfssl:wolfssl:3.8.0
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cpe:2.3:a:wolfssl:wolfssl:3.9.0
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cpe:2.3:a:wolfssl:wolfssl:3.9.1
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cpe:2.3:a:wolfssl:wolfssl:3.9.10
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cpe:2.3:a:wolfssl:wolfssl:3.9.6
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cpe:2.3:a:wolfssl:wolfssl:3.9.8
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cpe:2.3:a:wolfssl:wolfssl:4.0
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cpe:2.3:a:wolfssl:wolfssl:4.0.0