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Red Hat Enterprise Linux 6: Important RHSA-2020-1349-01 for krb5-appl

red hat
Calendar Grey April 7, 2020
Scroller Redhat
A critical vulnerability patch for krb5-appl resolves a remote code execution threat in CentOS 6.
An update for krb5-appl is now available for Red Hat Enterprise Linux 6

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

Summary

The krb5-appl packages contain Kerberos-aware versions of telnet, ftp, rsh, and rlogin clients and servers. Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and trusted third-party, the Key Distribution Center (KDC).
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.

Topics%20covered

Topics Covered

security advisory red hat remote code execution important telnet krb5-appl

References

https://access.redhat.com/security/cve/CVE-2020-10188 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: krb5-appl-1.0.1-10.el6_10.src.rpm
i386: krb5-appl-clients-1.0.1-10.el6_10.i686.rpm krb5-appl-debuginfo-1.0.1-10.el6_10.i686.rpm krb5-appl-servers-1.0.1-10.el6_10.i686.rpm
x86_64: krb5-appl-clients-1.0.1-10.el6_10.x86_64.rpm krb5-appl-debuginfo-1.0.1-10.el6_10.x86_64.rpm krb5-appl-servers-1.0.1-10.el6_10.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: krb5-appl-1.0.1-10.el6_10.src.rpm
x86_64: krb5-appl-clients-1.0.1-10.el6_10.x86_64.rpm krb5-appl-debuginfo-1.0.1-10.el6_10.x86_64.rpm krb5-appl-servers-1.0.1-10.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: krb5-appl-1.0.1-10.el6_10.src.rpm
i386: krb5-appl-clients-1.0.1-10.el6_10.i686.rpm krb5-appl-debuginfo-1.0.1-10.el6_10.i686.rpm krb5-appl-servers-1.0.1-10.el6_10.i686.rpm
ppc64: krb5-appl-clients-1.0.1-10.el6_10.ppc64.rpm krb5-appl-debuginfo-1.0.1-10.el6_10.ppc64.rpm krb5-appl-servers-1.0.1-10.el6_10.ppc64.rpm
s390x: krb5-appl-clients-1.0.1-10.el6_10.s390x.rpm krb5-appl-debuginfo-1.0.1-10.el6_10.s390x.rpm krb5-appl-servers-1.0.1-10.el6_10.s390x.rpm
x86_64: krb5-appl-clients-1.0.1-10.el6_10.x86_64.rpm krb5-appl-debuginfo-1.0.1-10.el6_10.x86_64.rpm krb5-appl-servers-1.0.1-10.el6_10.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1349-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1349
Issue date: 2020-04-07

Topic

An update for krb5-appl is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory red hat remote code execution important telnet krb5-appl

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Bugs Fixed

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

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