CVE-2018-12435

CVSS V2 Low 1.9 CVSS V3 Medium 5.9
Description
Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Overview
  • CVE ID
  • CVE-2018-12435
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-06-15T02:29:00
  • Last Modified Date
  • 2018-08-22T19:57:41
Weakness Enumerations
CWE URL
CWE-200 http://cwe.mitre.org/data/definitions/200.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:* 1 OR 2.5.0 2.7.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 1.9
  • Severity
  • LOW
  • Exploitability Score
  • 3.4
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.4
  • Impact Score
  • 4
References
Reference URL Reference Tags
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/ Exploit Third Party Advisory
https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3 Patch Third Party Advisory
https://botan.randombit.net/security.html Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-12435
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12435
History
Created Old Value New Value Data Type Notes
2022-05-10 18:39:03 Added to TrackCVE
2022-12-03 08:07:12 2018-06-15T02:29Z 2018-06-15T02:29:00 CVE Published Date updated
2022-12-03 08:07:12 2018-08-22T19:57:41 CVE Modified Date updated
2022-12-03 08:07:12 Analyzed Vulnerability Status updated