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CVE-2018-0495

Published: Jun 13, 2018Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-203
4.7MEDIUM
NVD MITRE
EPSS Score
0.9%
Top 44.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-203

Affected Products

redhat
commercial·USaka red hat
ansible towerOn-prem
Operating Systems / linux-distro
enterprise linux workstationOn-premOS
Operating Systems / linux-distro
Oracle Corp.
commercial·USaka oracle
traffic directorOn-premNetwork Device
Networking Infrastructure / load-balancer-proxy
Oracle Traffic DirectorOn-premNetwork Device
Networking Infrastructure
gnupg
oss-projectaka libgcrypt, libksba
libgcryptLibraryLibrary
Security Products / pki-crypto
Canonical Ltd.
commercial·GBaka canonical
UbuntuOn-premOS
Operating Systems / linux-distro
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
and 7 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2018-0495?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Discovery
View detailed technique mapping

References

http://www.securitytracker.com/id/1041144
securitytracker.com
http://www.securitytracker.com/id/1041147
securitytracker.com
https://access.redhat.com/errata/RHSA-2018:3221
access.redhat.com
and 29 more references View all →

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