Vulnerability Details CVE-2018-12434
LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 9.1%
CVSS Severity
CVSS v3 Score 4.7
CVSS v2 Score 1.9
References
- https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txt
- https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txt
- https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
- https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txt
- https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txt
- https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
Products affected by CVE-2018-12434
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cpe:2.3:a:openbsd:libressl:-
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cpe:2.3:a:openbsd:libressl:2.0.0
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cpe:2.3:a:openbsd:libressl:2.0.1
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cpe:2.3:a:openbsd:libressl:2.0.2
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cpe:2.3:a:openbsd:libressl:2.0.3
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cpe:2.3:a:openbsd:libressl:2.0.4
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cpe:2.3:a:openbsd:libressl:2.0.5
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cpe:2.3:a:openbsd:libressl:2.0.6
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cpe:2.3:a:openbsd:libressl:2.1.0
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cpe:2.3:a:openbsd:libressl:2.1.1
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cpe:2.3:a:openbsd:libressl:2.1.10
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cpe:2.3:a:openbsd:libressl:2.1.2
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cpe:2.3:a:openbsd:libressl:2.1.3
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cpe:2.3:a:openbsd:libressl:2.1.4
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cpe:2.3:a:openbsd:libressl:2.1.5
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cpe:2.3:a:openbsd:libressl:2.1.6
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cpe:2.3:a:openbsd:libressl:2.1.7
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cpe:2.3:a:openbsd:libressl:2.1.8
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cpe:2.3:a:openbsd:libressl:2.1.9
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cpe:2.3:a:openbsd:libressl:2.2.0
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cpe:2.3:a:openbsd:libressl:2.2.1
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cpe:2.3:a:openbsd:libressl:2.2.2
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cpe:2.3:a:openbsd:libressl:2.2.3
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cpe:2.3:a:openbsd:libressl:2.2.4
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cpe:2.3:a:openbsd:libressl:2.2.5
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cpe:2.3:a:openbsd:libressl:2.2.6
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cpe:2.3:a:openbsd:libressl:2.2.7
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cpe:2.3:a:openbsd:libressl:2.2.8
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cpe:2.3:a:openbsd:libressl:2.2.9
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cpe:2.3:a:openbsd:libressl:2.3.0
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cpe:2.3:a:openbsd:libressl:2.3.1
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cpe:2.3:a:openbsd:libressl:2.3.10
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cpe:2.3:a:openbsd:libressl:2.3.2
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cpe:2.3:a:openbsd:libressl:2.3.3
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cpe:2.3:a:openbsd:libressl:2.3.4
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cpe:2.3:a:openbsd:libressl:2.3.5
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cpe:2.3:a:openbsd:libressl:2.3.6
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cpe:2.3:a:openbsd:libressl:2.3.7
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cpe:2.3:a:openbsd:libressl:2.3.8
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cpe:2.3:a:openbsd:libressl:2.3.9
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cpe:2.3:a:openbsd:libressl:2.4.0
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cpe:2.3:a:openbsd:libressl:2.4.1
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cpe:2.3:a:openbsd:libressl:2.4.2
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cpe:2.3:a:openbsd:libressl:2.4.3
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cpe:2.3:a:openbsd:libressl:2.4.4
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cpe:2.3:a:openbsd:libressl:2.4.5
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cpe:2.3:a:openbsd:libressl:2.5.0
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cpe:2.3:a:openbsd:libressl:2.5.1
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cpe:2.3:a:openbsd:libressl:2.5.2
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cpe:2.3:a:openbsd:libressl:2.5.3
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cpe:2.3:a:openbsd:libressl:2.5.4
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cpe:2.3:a:openbsd:libressl:2.5.5
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cpe:2.3:a:openbsd:libressl:2.6.0
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cpe:2.3:a:openbsd:libressl:2.6.1
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cpe:2.3:a:openbsd:libressl:2.6.2
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cpe:2.3:a:openbsd:libressl:2.6.3
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cpe:2.3:a:openbsd:libressl:2.6.4
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cpe:2.3:a:openbsd:libressl:2.7.0
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cpe:2.3:a:openbsd:libressl:2.7.1
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cpe:2.3:a:openbsd:libressl:2.7.2
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cpe:2.3:a:openbsd:libressl:2.7.3