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Red Hat Enterprise Linux 6: RHSA-2017:0654-01 Moderate Coreutils Race Issue

red hat
Calendar Grey March 21, 2017
Scroller Redhat
An update released by Red Hat for coreutils tackles a significant security vulnerability, alongside essential bug corrections for its users.
An update for coreutils 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 coreutils packages contain the GNU Core Utilities and represent a combination of the previously used GNU fileutils, sh-utils, and textutils packages.
Security Fix(es):
* A race condition was found in the way su handled the management of child processes. A local authenticated attacker could use this flaw to kill other processes with root privileges under specific conditions. (CVE-2017-2616)
Red Hat would like to thank Tobias Stöckmann for reporting this issue.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9 Technical Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory security patch coreutils Red Hat Enterprise moderate issue child process

References

https://access.redhat.com/security/cve/CVE-2017-2616 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.9_Release_Notes/index.html https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.9_Technical_Notes/index.html

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: coreutils-8.4-46.el6.src.rpm
i386: coreutils-8.4-46.el6.i686.rpm coreutils-debuginfo-8.4-46.el6.i686.rpm coreutils-libs-8.4-46.el6.i686.rpm
x86_64: coreutils-8.4-46.el6.x86_64.rpm coreutils-debuginfo-8.4-46.el6.x86_64.rpm coreutils-libs-8.4-46.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: coreutils-8.4-46.el6.src.rpm
x86_64: coreutils-8.4-46.el6.x86_64.rpm coreutils-debuginfo-8.4-46.el6.x86_64.rpm coreutils-libs-8.4-46.el6.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: coreutils-8.4-46.el6.src.rpm
i386: coreutils-8.4-46.el6.i686.rpm coreutils-debuginfo-8.4-46.el6.i686.rpm coreutils-libs-8.4-46.el6.i686.rpm
ppc64: coreutils-8.4-46.el6.ppc64.rpm coreutils-debuginfo-8.4-46.el6.ppc64.rpm coreutils-libs-8.4-46.el6.ppc64.rpm
s390x: coreutils-8.4-46.el6.s390x.rpm coreutils-debuginfo-8.4-46.el6.s390x.rpm coreutils-libs-8.4-46.el6.s390x.rpm
x86_64: coreutils-8.4-46.el6.x86_64.rpm coreutils-debuginfo-8.4-46.el6.x86_64.rpm coreutils-libs-8.4-46.el6.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source: coreutils-8.4-46.el6.src.rpm
i386: coreutils-8.4-46.el6.i686.rpm coreutils-debuginfo-8.4-46.el6.i686.rpm coreutils-libs-8.4-46.el6.i686.rpm
x86_64: coreutils-8.4-46.el6.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2017:0654-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:0654.html
Issue date: 2017-03-21

Topic

An update for coreutils is now available for Red Hat Enterprise Linux 6.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.

Topics%20covered

Topics Covered

security advisory security patch coreutils Red Hat Enterprise moderate issue child process

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

1321643 - Bug in /etc/profile.d/colorls.sh when using the ksh shell [el6]

1418710 - CVE-2017-2616 util-linux: Sending SIGKILL to other processes with root privileges via su

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