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Red Hat Enterprise Linux 6 & 7: RHSA-2016-2872-01 Moderate Sudo Threat

Redhat Large Esm H500
An update for sudo is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: sudo security update
Advisory ID:       RHSA-2016:2872-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2016:2872.html
Issue date:        2016-12-06
CVE Names:         CVE-2016-7032 CVE-2016-7076 
====================================================================
1. Summary:

An update for sudo is now available for Red Hat Enterprise Linux 6 and Red
Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The sudo packages contain the sudo utility which allows system
administrators to provide certain users with the permission to execute
privileged commands, which are used for system management purposes, without
having to log in as root.

Security Fix(es):

* It was discovered that the sudo noexec restriction could have been
bypassed if application run via sudo executed system(), popen(), or
wordexp() C library functions with a user supplied argument. A local user
permitted to run such application via sudo with noexec restriction could
use these flaws to execute arbitrary commands with elevated privileges.
(CVE-2016-7032, CVE-2016-7076)

These issues were discovered by Florian Weimer (Red Hat).

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/):

1372830 - CVE-2016-7032 sudo: noexec bypass via system() and popen()
1384982 - CVE-2016-7076 sudo: noexec bypass via wordexp()

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
sudo-1.8.6p3-25.el6_8.src.rpm

i386:
sudo-1.8.6p3-25.el6_8.i686.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm

x86_64:
sudo-1.8.6p3-25.el6_8.x86_64.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

i386:
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
sudo-devel-1.8.6p3-25.el6_8.i686.rpm

x86_64:
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm
sudo-devel-1.8.6p3-25.el6_8.i686.rpm
sudo-devel-1.8.6p3-25.el6_8.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
sudo-1.8.6p3-25.el6_8.src.rpm

x86_64:
sudo-1.8.6p3-25.el6_8.x86_64.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

x86_64:
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm
sudo-devel-1.8.6p3-25.el6_8.i686.rpm
sudo-devel-1.8.6p3-25.el6_8.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
sudo-1.8.6p3-25.el6_8.src.rpm

i386:
sudo-1.8.6p3-25.el6_8.i686.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm

ppc64:
sudo-1.8.6p3-25.el6_8.ppc64.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.ppc64.rpm

s390x:
sudo-1.8.6p3-25.el6_8.s390x.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.s390x.rpm

x86_64:
sudo-1.8.6p3-25.el6_8.x86_64.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

i386:
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
sudo-devel-1.8.6p3-25.el6_8.i686.rpm

ppc64:
sudo-debuginfo-1.8.6p3-25.el6_8.ppc.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.ppc64.rpm
sudo-devel-1.8.6p3-25.el6_8.ppc.rpm
sudo-devel-1.8.6p3-25.el6_8.ppc64.rpm

s390x:
sudo-debuginfo-1.8.6p3-25.el6_8.s390.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.s390x.rpm
sudo-devel-1.8.6p3-25.el6_8.s390.rpm
sudo-devel-1.8.6p3-25.el6_8.s390x.rpm

x86_64:
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm
sudo-devel-1.8.6p3-25.el6_8.i686.rpm
sudo-devel-1.8.6p3-25.el6_8.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
sudo-1.8.6p3-25.el6_8.src.rpm

i386:
sudo-1.8.6p3-25.el6_8.i686.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm

x86_64:
sudo-1.8.6p3-25.el6_8.x86_64.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

i386:
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
sudo-devel-1.8.6p3-25.el6_8.i686.rpm

x86_64:
sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm
sudo-devel-1.8.6p3-25.el6_8.i686.rpm
sudo-devel-1.8.6p3-25.el6_8.x86_64.rpm

Red Hat Enterprise Linux Client (v. 7):

Source:
sudo-1.8.6p7-21.el7_3.src.rpm

x86_64:
sudo-1.8.6p7-21.el7_3.x86_64.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
sudo-debuginfo-1.8.6p7-21.el7_3.i686.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.x86_64.rpm
sudo-devel-1.8.6p7-21.el7_3.i686.rpm
sudo-devel-1.8.6p7-21.el7_3.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
sudo-1.8.6p7-21.el7_3.src.rpm

x86_64:
sudo-1.8.6p7-21.el7_3.x86_64.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
sudo-debuginfo-1.8.6p7-21.el7_3.i686.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.x86_64.rpm
sudo-devel-1.8.6p7-21.el7_3.i686.rpm
sudo-devel-1.8.6p7-21.el7_3.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
sudo-1.8.6p7-21.el7_3.src.rpm

aarch64:
sudo-1.8.6p7-21.el7_3.aarch64.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.aarch64.rpm

ppc64:
sudo-1.8.6p7-21.el7_3.ppc64.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.ppc64.rpm

ppc64le:
sudo-1.8.6p7-21.el7_3.ppc64le.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.ppc64le.rpm

s390x:
sudo-1.8.6p7-21.el7_3.s390x.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.s390x.rpm

x86_64:
sudo-1.8.6p7-21.el7_3.x86_64.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

aarch64:
sudo-debuginfo-1.8.6p7-21.el7_3.aarch64.rpm
sudo-devel-1.8.6p7-21.el7_3.aarch64.rpm

ppc64:
sudo-debuginfo-1.8.6p7-21.el7_3.ppc.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.ppc64.rpm
sudo-devel-1.8.6p7-21.el7_3.ppc.rpm
sudo-devel-1.8.6p7-21.el7_3.ppc64.rpm

ppc64le:
sudo-debuginfo-1.8.6p7-21.el7_3.ppc64le.rpm
sudo-devel-1.8.6p7-21.el7_3.ppc64le.rpm

s390x:
sudo-debuginfo-1.8.6p7-21.el7_3.s390.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.s390x.rpm
sudo-devel-1.8.6p7-21.el7_3.s390.rpm
sudo-devel-1.8.6p7-21.el7_3.s390x.rpm

x86_64:
sudo-debuginfo-1.8.6p7-21.el7_3.i686.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.x86_64.rpm
sudo-devel-1.8.6p7-21.el7_3.i686.rpm
sudo-devel-1.8.6p7-21.el7_3.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
sudo-1.8.6p7-21.el7_3.src.rpm

x86_64:
sudo-1.8.6p7-21.el7_3.x86_64.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
sudo-debuginfo-1.8.6p7-21.el7_3.i686.rpm
sudo-debuginfo-1.8.6p7-21.el7_3.x86_64.rpm
sudo-devel-1.8.6p7-21.el7_3.i686.rpm
sudo-devel-1.8.6p7-21.el7_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-2016-7032
https://access.redhat.com/security/cve/CVE-2016-7076
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2016 Red Hat, Inc.
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Red Hat Enterprise Linux 6 & 7: RHSA-2016-2872-01 Moderate Sudo Threat

red hat
Calendar Grey December 6, 2016
Dist Redhat Esm H88
Latest security patch for sudo in RHEL 6 and 7 targets noexec circumvention vulnerabilities. Ensure timely implementation of updates.
An update for sudo is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7

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 sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root.
Security Fix(es):
* It was discovered that the sudo noexec restriction could have been bypassed if application run via sudo executed system(), popen(), or wordexp() C library functions with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could use these flaws to execute arbitrary commands with elevated privileges. (CVE-2016-7032, CVE-2016-7076)
These issues were discovered by Florian Weimer (Red Hat).

References

https://access.redhat.com/security/cve/CVE-2016-7032 https://access.redhat.com/security/cve/CVE-2016-7076 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: sudo-1.8.6p3-25.el6_8.src.rpm
i386: sudo-1.8.6p3-25.el6_8.i686.rpm sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
x86_64: sudo-1.8.6p3-25.el6_8.x86_64.rpm sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm sudo-devel-1.8.6p3-25.el6_8.i686.rpm
x86_64: sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm sudo-devel-1.8.6p3-25.el6_8.i686.rpm sudo-devel-1.8.6p3-25.el6_8.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: sudo-1.8.6p3-25.el6_8.src.rpm
x86_64: sudo-1.8.6p3-25.el6_8.x86_64.rpm sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
x86_64: sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm sudo-debuginfo-1.8.6p3-25.el6_8.x86_64.rpm sudo-devel-1.8.6p3-25.el6_8.i686.rpm sudo-devel-1.8.6p3-25.el6_8.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: sudo-1.8.6p3-25.el6_8.src.rpm
i386: sudo-1.8.6p3-25.el6_8.i686.rpm sudo-debuginfo-1.8.6p3-25.el6_8.i686.rpm
ppc64: sudo-1.8.6p3-25.el6_8.ppc64.rpm sudo-debuginfo-1.8.6p3-25.el6_8.ppc64.rpm
s390x: sudo-1.8.6p3-25.el6_8.s390x.rpm sudo-debuginfo-1.8.6p3-25.el6_8.s390x.rpm
x86_64: sudo-1.8.6p3-25.el6_8.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2016:2872-01
Product: Red Hat Enterprise Linux
Issue date: 2016-12-06

Topic

An update for sudo is now available for Red Hat Enterprise Linux 6 and RedHat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

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

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

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

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

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

Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64

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

Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64

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

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

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

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1372830 - CVE-2016-7032 sudo: noexec bypass via system() and popen()

1384982 - CVE-2016-7076 sudo: noexec bypass via wordexp()

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