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NOTICE UPDATE

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2018-0495 Detail

Description

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, 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.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  4.7 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://www.securitytracker.com/id/1041144 Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1041147 Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2018:3221 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:3505 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:1296
https://access.redhat.com/errata/RHSA-2019:1297
https://access.redhat.com/errata/RHSA-2019:1543
https://access.redhat.com/errata/RHSA-2019:2237
https://dev.gnupg.org/T4011 Patch  Vendor Advisory 
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a4274ad3f4aa15776c28f6ba965
https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html Mailing List  Third Party Advisory 
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html Vendor Advisory 
https://usn.ubuntu.com/3689-1/ Third Party Advisory 
https://usn.ubuntu.com/3689-2/ Third Party Advisory 
https://usn.ubuntu.com/3692-1/ Third Party Advisory 
https://usn.ubuntu.com/3692-2/ Third Party Advisory 
https://usn.ubuntu.com/3850-1/ Third Party Advisory 
https://usn.ubuntu.com/3850-2/ Third Party Advisory 
https://www.debian.org/security/2018/dsa-4231 Third Party Advisory 
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/ Exploit  Third Party Advisory 
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-203 Observable Discrepancy cwe source acceptance level NIST  

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Change History

18 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-0495
NVD Published Date:
06/13/2018
NVD Last Modified:
11/06/2023
Source:
Debian GNU/Linux