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CVE-2018-0734

Timing attack against DSA

Published: Oct 30, 2018Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-327
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
12.2%
Top 4.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-327

Affected Products

opensslopensslOSS Libraries
ubuntu linuxcanonical
On-premOS
Operating Systems / linux-distro
debian linuxdebian
On-premOS
Operating Systems / linux-distro
node.jsnodejsOSS Libraries
cn1610 firmwarenetappHardware Firmware
openssloss-projectUSOSS Librariesaka open ssl
canonicalcommercialGBOperating Systemsaka canonical ltd.
debianoss-projectGBOperating Systemsaka debian gnu/linux
nodejsoss-projectUSOSS Librariesaka node.js, node
netappcommercialUSHardware Firmware
and 41 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html
lists.opensuse.org
http://www.securityfocus.com/bid/105758
securityfocus.com
and 40 more references View all →

Timeline

Published
Oct 30, 2018
Last Updated
Nov 21, 2024

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