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
Keywords:
Status: CLOSED DUPLICATE of bug 1591163
Alias: CVE-2018-12437
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1591906 1591905
Blocks: 1591913
TreeView+ depends on / blocked
 
Reported: 2018-06-15 18:14 UTC by Laura Pardo
Modified: 2021-02-17 00:07 UTC (History)
19 users (show)

Fixed In Version:
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Last Closed: 2018-07-12 17:56:37 UTC
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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.
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