Bug 1591904 – CVE-2018-12437 libtomcrypt: memory-cache side-channel attack on ECDSA signatures

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Bug 1591904 - (CVE-2018-12437) CVE-2018-12437 libtomcrypt: memory-cache side-channel attack on ECDSA signatures

Summary:	CVE-2018-12437 libtomcrypt: memory-cache side-channel attack on ECDSA signatures

Status:	CLOSED DUPLICATE of bug 1591163

Aliases:	CVE-2018-12437

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=moderate,public=20180613,repor...
Keywords:	Security

Depends On:	1591906 1591905
Blocks:	1591913
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Reported:	2018-06-15 14:14 EDT by Laura Pardo
Modified:	2018-07-12 13:56 EDT (History)
CC List:	19 users (show)

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Last Closed:	2018-07-12 13:56:37 EDT
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Description Laura Pardo 2018-06-15 14:14:21 EDT

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 14:14:58 EDT

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 13:56:37 EDT


*** This bug has been marked as a duplicate of bug 1591163 ***

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