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CVE-2018-0495

N/A
Published: June 13, 2018 at 11:00 PM UTC
Updated: October 14, 2026 at 07:16 AM UTC
9 products affected across 6 vendorsDebian LinuxUbuntu LinuxEnterprise Linux Desktop

Using Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 by N/A?

Get instant alerts when new vulnerabilities affect Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 - before attackers find them.

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Severity
N/A
Exploit prediction
EPSS 0.9%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
12.0414.0416.0417.1018.0418.10
Debian Linux· Debiandrupal
95%
8.09.0
Libgcrypt· Gnupg
95%
v < 1.7.101.8.0 ≤ v < 1.8.3
Affected range stops below 1.7.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.8.3, so it looks safe — our inference, not a vendor statement
Traffic Director· Oracle
95%
11.1.1.9.0
Ansible Tower· Red Hatrpm
95%
3.3
Enterprise Linux Desktop· Red Hatrubygems
95%
7.0
Enterprise Linux Server· Red Hatrubygems
95%
7.0
Enterprise Linux Workstation· Red Hatrubygems
95%
7.0
Libgcrypt· Gnu
77%
All versions

References (22)

VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1041144
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1041147
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:3221
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:3505
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:1296
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:1297
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:1543
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:2237

CVSS

1.9LOW[email protected]
Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

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