CVE-2021-32066

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Summary

CVECVE-2021-32066
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-01 19:15:00 UTC
Updated2024-01-24 05:15:00 UTC
DescriptionAn issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."

Risk And Classification

Problem Types: CWE-755

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Oracle Jd Edwards Enterpriseone Tools All All All All
Application Ruby-lang Ruby All All All All
Application Ruby-lang Ruby All All All All
Application Ruby-lang Ruby All All All All

References

ReferenceSourceLinkTags
Fix StartTLS stripping vulnerability · ruby/ruby@a21a3b7 · GitHub CONFIRM github.com
August 2021 Ruby Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
Oracle Critical Patch Update Advisory - April 2022 MISC www.oracle.com
Ruby: Multiple vulnerabilities (GLSA 202401-27) — Gentoo security security.gentoo.org
HackerOne MISC hackerone.com
[SECURITY] [DLA 2780-1] ruby2.3 security update MLIST lists.debian.org
[SECURITY] [DLA 3408-1] jruby security update MLIST lists.debian.org
CVE-2021-32066: A StartTLS stripping vulnerability in Net::IMAP CONFIRM www.ruby-lang.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159326 Oracle Enterprise Linux Security Update for ruby:2.7 (ELSA-2021-3020)
  • 159635 Oracle Enterprise Linux Security Update for ruby:2.6 (ELSA-2022-0543)
  • 159682 Oracle Enterprise Linux Security Update for ruby:2.5 (ELSA-2022-0672)
  • 159692 Oracle Enterprise Linux Security Update for ruby:2.5 (ELSA-2022-0672-1)
  • 178838 Debian Security Update for ruby2.3 (DLA 2780-1)
  • 179051 Debian Security Update for ruby2.5 (DSA 5066-1)
  • 179999 Debian Security Update for ruby2.7 (CVE-2021-32066)
  • 181757 Debian Security Update for jruby (DLA 3408-1)
  • 198440 Ubuntu Security Notification for Ruby vulnerabilities (USN-5020-1)
  • 239536 Red Hat Update for ruby:2.7 (RHSA-2021:3020)
  • 239644 Red Hat Update for rh-ruby27-ruby (RHSA-2021:3559)
  • 239651 Red Hat Update for rh-ruby27-ruby (RHSA-2021:3559)
  • 239736 Red Hat Update for rh-ruby30-ruby (RHSA-2021:3982)
  • 240090 Red Hat Update for ruby:2.6 (RHSA-2022:0544)
  • 240092 Red Hat Update for ruby:2.6 (RHSA-2022:0543)
  • 240108 Red Hat Update for ruby:2.5 (RHSA-2022:0672)
  • 240116 Red Hat Update for rh-ruby26-ruby security (RHSA-2022:0708)
  • 240156 Red Hat Update for ruby:2.6 (RHSA-2022:0582)
  • 281749 Fedora Security Update for ruby (FEDORA-2021-36cdab1f8d)
  • 296060 Oracle Solaris 11.4 Support Repository Update (SRU) 37.0.1.101.1 Missing (CPUJUL2021)
  • 356177 Amazon Linux Security Advisory for ruby : ALASRUBY3.0-2023-005
  • 356272 Amazon Linux Security Advisory for ruby : ALASRUBY2.6-2023-004
  • 356464 Amazon Linux Security Advisory for ruby : ALAS2RUBY2.6-2023-004
  • 356497 Amazon Linux Security Advisory for ruby : ALAS2RUBY3.0-2023-005
  • 377094 Alibaba Cloud Linux Security Update for ruby:2.7 (ALINUX3-SA-2021:0054)
  • 500616 Alpine Linux Security Update for ruby
  • 504376 Alpine Linux Security Update for ruby
  • 670728 EulerOS Security Update for ruby (EulerOS-SA-2021-2486)
  • 670835 EulerOS Security Update for ruby (EulerOS-SA-2021-2721)
  • 670875 EulerOS Security Update for ruby (EulerOS-SA-2021-2696)
  • 671024 EulerOS Security Update for ruby (EulerOS-SA-2021-2673)
  • 671027 EulerOS Security Update for ruby (EulerOS-SA-2021-2614)
  • 690087 Free Berkeley Software Distribution (FreeBSD) Security Update for ruby (7ed5779c-e4c7-11eb-91d7-08002728f74c)
  • 710844 Gentoo Linux Ruby Multiple Vulnerabilities (GLSA 202401-27)
  • 751413 SUSE Enterprise Linux Security Update for ruby2.5 (SUSE-SU-2021:3838-1)
  • 751423 SUSE Enterprise Linux Security Update for ruby2.1 (SUSE-SU-2021:3837-1)
  • 751432 OpenSUSE Security Update for ruby2.5 (openSUSE-SU-2021:3838-1)
  • 751459 OpenSUSE Security Update for ruby2.5 (openSUSE-SU-2021:1535-1)
  • 752103 SUSE Enterprise Linux Security Update for ruby2.5 (SUSE-SU-2022:1512-1)
  • 900290 CBL-Mariner Linux Security Update for ruby 2.6.7
  • 901267 Common Base Linux Mariner (CBL-Mariner) Security Update for ruby (6861-1)
  • 902811 Common Base Linux Mariner (CBL-Mariner) Security Update for ruby (5019)
  • 940383 AlmaLinux Security Update for ruby:2.7 (ALSA-2021:3020)
  • 940455 AlmaLinux Security Update for ruby:2.6 (ALSA-2022:0543)
  • 940459 AlmaLinux Security Update for ruby:2.5 (ALSA-2022:0672)
  • 960315 Rocky Linux Security Update for ruby:2.7 (RLSA-2021:3020)
  • 960814 Rocky Linux Security Update for ruby:2.6 (RLSA-2022:0543)
  • 960817 Rocky Linux Security Update for ruby:2.5 (RLSA-2022:0672)
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