-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis:          Important: telnet security update
Advisory ID:       RHSA-2020:1318-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:1318
Issue date:        2020-04-06
CVE Names:         CVE-2020-10188 
=====================================================================

1. Summary:

An update for telnet 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 AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

Telnet is a popular protocol for logging in to remote systems over the
Internet. The telnet-server packages include a telnet service that supports
remote logins into the host machine. The telnet service is disabled by
default.

Security Fix(es):

* telnet-server: no bounds checks in nextitem() function allows to remotely
execute arbitrary code (CVE-2020-10188)

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/):

1811673 - CVE-2020-10188 telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
telnet-0.17-73.el8_1.1.src.rpm

aarch64:
telnet-0.17-73.el8_1.1.aarch64.rpm
telnet-debuginfo-0.17-73.el8_1.1.aarch64.rpm
telnet-debugsource-0.17-73.el8_1.1.aarch64.rpm
telnet-server-0.17-73.el8_1.1.aarch64.rpm
telnet-server-debuginfo-0.17-73.el8_1.1.aarch64.rpm

ppc64le:
telnet-0.17-73.el8_1.1.ppc64le.rpm
telnet-debuginfo-0.17-73.el8_1.1.ppc64le.rpm
telnet-debugsource-0.17-73.el8_1.1.ppc64le.rpm
telnet-server-0.17-73.el8_1.1.ppc64le.rpm
telnet-server-debuginfo-0.17-73.el8_1.1.ppc64le.rpm

s390x:
telnet-0.17-73.el8_1.1.s390x.rpm
telnet-debuginfo-0.17-73.el8_1.1.s390x.rpm
telnet-debugsource-0.17-73.el8_1.1.s390x.rpm
telnet-server-0.17-73.el8_1.1.s390x.rpm
telnet-server-debuginfo-0.17-73.el8_1.1.s390x.rpm

x86_64:
telnet-0.17-73.el8_1.1.x86_64.rpm
telnet-debuginfo-0.17-73.el8_1.1.x86_64.rpm
telnet-debugsource-0.17-73.el8_1.1.x86_64.rpm
telnet-server-0.17-73.el8_1.1.x86_64.rpm
telnet-server-debuginfo-0.17-73.el8_1.1.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-2020-10188
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 2020 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=GC5k
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce