Cryptographic Issues Affecting ruby-tcltk package, versions <0:1.8.7.352-12.el6_4


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.77% (85th percentile)

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  • Snyk IDSNYK-RHEL6-RUBYTCLTK-1467339
  • published26 Jul 2021
  • disclosed27 Jun 2013

Introduced: 27 Jun 2013

CVE-2013-4073  (opens in a new tab)
CWE-310  (opens in a new tab)

How to fix?

Upgrade RHEL:6 ruby-tcltk to version 0:1.8.7.352-12.el6_4 or higher.
This issue was patched in RHSA-2013:1090.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-tcltk package and not the ruby-tcltk package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

The OpenSSL::SSL.verify_certificate_identity function in lib/openssl/ssl.rb in Ruby 1.8 before 1.8.7-p374, 1.9 before 1.9.3-p448, and 2.0 before 2.0.0-p247 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

CVSS Base Scores

version 3.1