CVEvulnerability

CVE-2015-1855

5.9 MEDIUM Published 2019-11-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-11-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
Weaknesses
CWE-20

Description

verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, and 2.2.x before 2.2.2 does not properly validate hostnames, which allows remote attackers to spoof servers via vectors related to (1) multiple wildcards, (1) wildcards in IDNA names, (3) case sensitivity, and (4) non-ASCII characters.

Affected configurations

• ruby-lang ruby (>= 2.1.0 < 2.1.6) • ruby-lang ruby (>= 2.2.0 < 2.2.2) • ruby-lang ruby 2.0.0 • ruby-lang trunk (< 50292) • debian debian linux 7.0 • debian debian linux 8.0 • debian debian linux 9.0 • puppet puppet agent 1.0.0 • puppet puppet enterprise (>= 3.0.0 < 3.8.0)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References