CVE-2018-0735 (GCVE-0-2018-0735)

Vulnerability from cvelistv5 – Published: 2018-10-29 13:00 – Updated: 2024-09-16 19:10
VLAI
Title
Timing attack against ECDSA signature generation
Summary
The OpenSSL ECDSA 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 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1).
Severity
No CVSS data available.
CWE
  • Constant time issue
Assigner
References
Impacted products
Vendor Product Version
OpenSSL OpenSSL Affected: Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i)
Affected: Fixed in OpenSSL 1.1.1a (Affected 1.1.1)
Create a notification for this product.
Date Public
2018-10-29 00:00
Credits
Samuel Weiser
Show details on NVD website
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Advisory\"]},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T07:18:37+00:00",
      "cve": "CVE-2018-0735",
      "id": "CVE-2018-0735",
      "initial_release_date": "2018-10-25T00:00:00+00:00",
      "product_status:fixed": "144",
      "product_status:known_affected": "6",
      "product_status:known_not_affected": "15",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "openssl: timing side channel attack in the ECDSA signature generation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-0735.json",
      "version": "3"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.