RHSA-2022:0011: Red Hat Security Advisory: telnet security update

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Issued:

2022-01-04

Updated:

2022-01-04

RHSA-2022:0011 - Security Advisory

• Overview
• Updated Packages

Synopsis

Important: telnet security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for telnet is now available for Red Hat Enterprise Linux 7.6 Advanced Update Support, Red Hat Enterprise Linux 7.6 Telco Extended Update Support, and Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions.

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.

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.

Affected Products

• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.6 ppc64le
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6 x86_64

Fixes

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

Red Hat Enterprise Linux Server - AUS 7.6

SRPM

telnet-0.17-65.el7_6.src.rpm

SHA-256: f96afbf6d2f5996add3deb5577aca836ee84f6c177772fd235c32c24cc659813

x86_64

telnet-0.17-65.el7_6.x86_64.rpm

SHA-256: 4c858574a0e51d176c82d6877665860e3f2dc703f15422549eda3e178801250f

telnet-debuginfo-0.17-65.el7_6.x86_64.rpm

SHA-256: 92ad5c575bf48d74920892e88cf4a79317df26f0667f7df6ad3e97032c3df74f

telnet-server-0.17-65.el7_6.x86_64.rpm

SHA-256: c98e756d83cf148130b114db7c3e9b0c9131c96ed1d4c67b583e30efc9557f07

Red Hat Enterprise Linux Server - TUS 7.6

SRPM

telnet-0.17-65.el7_6.src.rpm

SHA-256: f96afbf6d2f5996add3deb5577aca836ee84f6c177772fd235c32c24cc659813

x86_64

telnet-0.17-65.el7_6.x86_64.rpm

SHA-256: 4c858574a0e51d176c82d6877665860e3f2dc703f15422549eda3e178801250f

telnet-debuginfo-0.17-65.el7_6.x86_64.rpm

SHA-256: 92ad5c575bf48d74920892e88cf4a79317df26f0667f7df6ad3e97032c3df74f

telnet-server-0.17-65.el7_6.x86_64.rpm

SHA-256: c98e756d83cf148130b114db7c3e9b0c9131c96ed1d4c67b583e30efc9557f07

Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.6

SRPM

telnet-0.17-65.el7_6.src.rpm

SHA-256: f96afbf6d2f5996add3deb5577aca836ee84f6c177772fd235c32c24cc659813

ppc64le

telnet-0.17-65.el7_6.ppc64le.rpm

SHA-256: 39d0e0b7d0edb0a1441fa8fe1ebc8bd7b8496073bdbfb8a4369b0f07323479d0

telnet-debuginfo-0.17-65.el7_6.ppc64le.rpm

SHA-256: 9fdc69b0d0f9b65b3e4dc46f3ed2675eefd52c2718727042cb0f0d107b4240c1

telnet-server-0.17-65.el7_6.ppc64le.rpm

SHA-256: 6605adca0f73e224d17f7363e2f20d661bb42f7d58cba834d7699da4b8df9172

Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6

SRPM

telnet-0.17-65.el7_6.src.rpm

SHA-256: f96afbf6d2f5996add3deb5577aca836ee84f6c177772fd235c32c24cc659813

x86_64

telnet-0.17-65.el7_6.x86_64.rpm

SHA-256: 4c858574a0e51d176c82d6877665860e3f2dc703f15422549eda3e178801250f

telnet-debuginfo-0.17-65.el7_6.x86_64.rpm

SHA-256: 92ad5c575bf48d74920892e88cf4a79317df26f0667f7df6ad3e97032c3df74f

telnet-server-0.17-65.el7_6.x86_64.rpm

SHA-256: c98e756d83cf148130b114db7c3e9b0c9131c96ed1d4c67b583e30efc9557f07

The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.