CVE-2018-12434
N/A
Published: June 15, 2018 at 02:00 AM UTC
Updated: June 17, 2026 at 01:37 AM UTC
1 product affected across 1 vendorLibressl
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Severity
N/A
Exploit prediction
EPSS 0.3%
Description
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txtx_refsource_MISCVendor Advisory
Source: [email protected]
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txtx_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/Quick Info
StatusMODIFIED
CWE
CWE-200
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