exploit the possibilities

Red Hat Security Advisory 2021-0618-01

Red Hat Security Advisory 2021-0618-01
Posted Feb 22, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0618-01 - Stunnel is a wrapper for network connections. It can be used to tunnel an unencrypted network connection over an encrypted connection or to provide an encrypted means of connecting to services that do not natively support encryption.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-20230
MD5 | 22ddef1ff00ed8f3e57df4f7e0151467

Red Hat Security Advisory 2021-0618-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

=====================================================================
Red Hat Security Advisory

Synopsis: Important: stunnel security update
Advisory ID: RHSA-2021:0618-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0618
Issue date: 2021-02-22
CVE Names: CVE-2021-20230
=====================================================================

1. Summary:

An update for stunnel is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

Stunnel is a wrapper for network connections. It can be used to tunnel an
unencrypted network connection over an encrypted connection (encrypted
using SSL or TLS) or to provide an encrypted means of connecting to
services that do not natively support encryption.

Security Fix(es):

* stunnel: client certificate not correctly verified when redirect and
verifyChain options are used (CVE-2021-20230)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1925226 - CVE-2021-20230 stunnel: client certificate not correctly verified when redirect and verifyChain options are used

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
stunnel-5.56-5.el8_3.src.rpm

aarch64:
stunnel-5.56-5.el8_3.aarch64.rpm
stunnel-debuginfo-5.56-5.el8_3.aarch64.rpm
stunnel-debugsource-5.56-5.el8_3.aarch64.rpm

ppc64le:
stunnel-5.56-5.el8_3.ppc64le.rpm
stunnel-debuginfo-5.56-5.el8_3.ppc64le.rpm
stunnel-debugsource-5.56-5.el8_3.ppc64le.rpm

s390x:
stunnel-5.56-5.el8_3.s390x.rpm
stunnel-debuginfo-5.56-5.el8_3.s390x.rpm
stunnel-debugsource-5.56-5.el8_3.s390x.rpm

x86_64:
stunnel-5.56-5.el8_3.x86_64.rpm
stunnel-debuginfo-5.56-5.el8_3.x86_64.rpm
stunnel-debugsource-5.56-5.el8_3.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-20230
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=Zo9I
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://listman.redhat.com/mailman/listinfo/rhsa-announce
Login or Register to add favorites

File Archive:

March 2021

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    19 Files
  • 2
    Mar 2nd
    15 Files
  • 3
    Mar 3rd
    30 Files
  • 4
    Mar 4th
    13 Files
  • 5
    Mar 5th
    10 Files
  • 6
    Mar 6th
    1 Files
  • 7
    Mar 7th
    2 Files
  • 8
    Mar 8th
    19 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    0 Files
  • 12
    Mar 12th
    0 Files
  • 13
    Mar 13th
    0 Files
  • 14
    Mar 14th
    0 Files
  • 15
    Mar 15th
    0 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    0 Files
  • 19
    Mar 19th
    0 Files
  • 20
    Mar 20th
    0 Files
  • 21
    Mar 21st
    0 Files
  • 22
    Mar 22nd
    0 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    0 Files
  • 26
    Mar 26th
    0 Files
  • 27
    Mar 27th
    0 Files
  • 28
    Mar 28th
    0 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close