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CVE

CVE-2018-0734

The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could u

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).

MEDIUM · CVSS 5.9 EPSS 0.05057
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0

Weakness Classification

Affected Products & Versions

29
openssl>= 1.0.2 and <= 1.0.2p
openssl>= 1.1.0 and <= 1.1.0i
opensslall versions
debian linuxall versions
nodejs node.js>= 6.0.0 and <= 6.8.1
nodejs node.js>= 6.9.0 and < 6.15.0
nodejs node.js>= 8.0.0 and <= 8.8.1

Scoring & Timeline

5.9
MEDIUM · CVSS v3.1 · openssl-security@openssl.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 Oct 2018 · 12:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Advisories

25
suse-csafopenSUSE-SU-2024:11126-1
suse-csafopenSUSE-SU-2024:11127-1
rhsaRHBA-2020:0547Important
rhsaRHSA-2019:3932Important
🔗

References & Sources

24
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/105758Third Party AdvisoryVDB Entry
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