-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Critical: bash Shift_JIS security update Advisory ID: RHSA-2014:1295-01 Product: RHEL S-JIS Service Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-1295.html Issue date: 2014-09-24 CVE Names: CVE-2014-6271 ===================================================================== 1. Summary: Updated bash Shift_JIS packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6. Red Hat Product Security has rated this update as having Critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: SJIS (v. 5.11.z Server) - i386, ia64, x86_64 SJIS for RHEL 6 Server - i386, x86_64 3. Description: The GNU Bourne Again shell (Bash) is a shell and command language interpreter compatible with the Bourne shell (sh). Bash is the default shell for Red Hat Enterprise Linux. Shift_JIS, also known as "SJIS", is a character encoding for the Japanese language. This package provides bash support for the Shift_JIS encoding. A flaw was found in the way Bash evaluated certain specially crafted environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Certain services and applications allow remote unauthenticated attackers to provide environment variables, allowing them to exploit this issue. (CVE-2014-6271) For additional information on the CVE-2014-6271 flaw, refer to the Knowledgebase article at https://access.redhat.com/articles/1200223 Red Hat would like to thank Stephane Chazelas for reporting this issue. All users who require Shift_JIS encoding support with Bash built-in functions are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1141597 - CVE-2014-6271 bash: specially-crafted environment variables can be used to inject shell commands 6. Package List: SJIS (v. 5.11.z Server): Source: bash-3.2-33.el5_11.1.sjis.1.src.rpm i386: bash-3.2-33.el5_11.1.sjis.1.i386.rpm bash-debuginfo-3.2-33.el5_11.1.sjis.1.i386.rpm ia64: bash-3.2-33.el5_11.1.sjis.1.i386.rpm bash-3.2-33.el5_11.1.sjis.1.ia64.rpm bash-debuginfo-3.2-33.el5_11.1.sjis.1.i386.rpm bash-debuginfo-3.2-33.el5_11.1.sjis.1.ia64.rpm x86_64: bash-3.2-33.el5_11.1.sjis.1.x86_64.rpm bash-debuginfo-3.2-33.el5_11.1.sjis.1.x86_64.rpm SJIS for RHEL 6 Server: Source: bash-4.1.2-15.el6_5.1.sjis.1.src.rpm i386: bash-4.1.2-15.el6_5.1.sjis.1.i686.rpm bash-debuginfo-4.1.2-15.el6_5.1.sjis.1.i686.rpm bash-doc-4.1.2-15.el6_5.1.sjis.1.i686.rpm x86_64: bash-4.1.2-15.el6_5.1.sjis.1.x86_64.rpm bash-debuginfo-4.1.2-15.el6_5.1.sjis.1.x86_64.rpm bash-doc-4.1.2-15.el6_5.1.sjis.1.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/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2014-6271.html https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/articles/1200223 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2014 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFUIuFfXlSAg2UNWIIRAgPEAJ99T+LOz5nSBpr+kjYKXd0kzKbo3wCgqKEI c2Sm6+AINJyIkUtmp0EjQrs= =gdc+ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce