Bug 1591904 (CVE-2018-12437)

Summary: CVE-2018-12437 libtomcrypt: memory-cache side-channel attack on ECDSA signatures
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED DUPLICATE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: cpelland, dajohnso, dclarizi, gblomqui, gmccullo, gtanzill, hhudgeon, jcammara, jeremy, jfrey, jhardy, jprause, negativo17, obarenbo, pcahyna, pebarbos, roliveri, simaishi, tkuratom
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2018-07-12 17:56:37 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 1591905, 1591906    
Bug Blocks: 1591913    

Description Laura Pardo 2018-06-15 18:14:21 UTC 
LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.


References:
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
Comment 1 Laura Pardo 2018-06-15 18:14:58 UTC 
Created libtomcrypt tracking bugs for this issue:

Affects: epel-all [bug 1591906]
Affects: fedora-all [bug 1591905]
Comment 2 Pedro Yóssis Silva Barbosa 2018-07-12 17:56:37 UTC 

*** This bug has been marked as a duplicate of bug 1591163 ***
Comment 3 Doran Moppert 2020-02-10 04:33:29 UTC 
Statement:

This flaw was found to be a duplicate of CVE-2018-0495. Please see https://access.redhat.com/security/cve/CVE-2018-0495 for information about affected products and security errata.