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bash security update

Description

**CentOS Errata and Security Advisory** CESA-2017:1931 The bash packages provide Bash (Bourne-again shell), which is the default shell for Red Hat Enterprise Linux. Security Fix(es): * An arbitrary command injection flaw was found in the way bash processed the hostname value. A malicious DHCP server could use this flaw to execute arbitrary commands on the DHCP client machines running bash under specific circumstances. (CVE-2016-0634) * An arbitrary command injection flaw was found in the way bash processed the SHELLOPTS and PS4 environment variables. A local, authenticated attacker could use this flaw to exploit poorly written setuid programs to elevate their privileges under certain circumstances. (CVE-2016-7543) * A denial of service flaw was found in the way bash handled popd commands. A poorly written shell script could cause bash to crash resulting in a local denial of service limited to a specific bash session. (CVE-2016-9401) Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section. **Merged security bulletin from advisories:** https://lists.centos.org/pipermail/centos-cr-announce/2017-August/016901.html **Affected packages:** bash bash-doc **Upstream details at:** https://access.redhat.com/errata/RHSA-2017:1931


Affected Package


OS OS Version Package Name Package Version
CentOS 7 bash 4.2.46-28.el7
CentOS 7 bash-doc 4.2.46-28.el7

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