-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: kexec-tools security, bug fix, and enhancement update Advisory ID: RHSA-2015:0986-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-0986.html Issue date: 2015-05-12 CVE Names: CVE-2015-0267 ===================================================================== 1. Summary: Updated kexec-tools packages that fix one security issue, one bug, and add one enhancement are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate 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: 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 Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The kexec-tools packages contain the /sbin/kexec binary and utilities that together form the user-space component of the kernel's kexec feature. The /sbin/kexec binary facilitates a new kernel to boot using the kernel's kexec feature either on a normal or a panic reboot. The kexec fastboot mechanism allows booting a Linux kernel from the context of an already running kernel. It was found that the module-setup.sh script provided by kexec-tools created temporary files in an insecure way. A malicious, local user could use this flaw to conduct a symbolic link attack, allowing them to overwrite the contents of arbitrary files. (CVE-2015-0267) This issue was discovered by Harald Hoyer of Red Hat. This update also fixes the following bug: * On Red Hat Enterprise Linux Atomic Host systems, the kdump tool previously saved kernel crash dumps in the /sysroot/crash file instead of the /var/crash file. The parsing error that caused this problem has been fixed, and the kernel crash dumps are now correctly saved in /var/crash. (BZ#1206464) In addition, this update adds the following enhancement: * The makedumpfile command now supports the new sadump format that can represent more than 16 TB of physical memory space. This allows users of makedumpfile to read dump files over 16 TB, generated by sadump on certain upcoming server models. (BZ#1208753) All kexec-tools users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add this enhancement. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1191575 - CVE-2015-0267 kexec-tools: insecure use of /tmp/*$$* filenames 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kexec-tools-2.0.7-19.el7_1.2.src.rpm x86_64: kexec-tools-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: kexec-tools-anaconda-addon-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-eppic-2.0.7-19.el7_1.2.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kexec-tools-2.0.7-19.el7_1.2.src.rpm x86_64: kexec-tools-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: kexec-tools-anaconda-addon-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-eppic-2.0.7-19.el7_1.2.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kexec-tools-2.0.7-19.el7_1.2.src.rpm ppc64: kexec-tools-2.0.7-19.el7_1.2.ppc64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.ppc64.rpm s390x: kexec-tools-2.0.7-19.el7_1.2.s390x.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.s390x.rpm x86_64: kexec-tools-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kexec-tools-2.0.7-19.ael7b_1.2.src.rpm ppc64le: kexec-tools-2.0.7-19.ael7b_1.2.ppc64le.rpm kexec-tools-debuginfo-2.0.7-19.ael7b_1.2.ppc64le.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: kexec-tools-anaconda-addon-2.0.7-19.el7_1.2.ppc64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.ppc64.rpm kexec-tools-eppic-2.0.7-19.el7_1.2.ppc64.rpm s390x: kexec-tools-anaconda-addon-2.0.7-19.el7_1.2.s390x.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.s390x.rpm kexec-tools-eppic-2.0.7-19.el7_1.2.s390x.rpm x86_64: kexec-tools-anaconda-addon-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-eppic-2.0.7-19.el7_1.2.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64le: kexec-tools-anaconda-addon-2.0.7-19.ael7b_1.2.ppc64le.rpm kexec-tools-debuginfo-2.0.7-19.ael7b_1.2.ppc64le.rpm kexec-tools-eppic-2.0.7-19.ael7b_1.2.ppc64le.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kexec-tools-2.0.7-19.el7_1.2.src.rpm x86_64: kexec-tools-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: kexec-tools-anaconda-addon-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-debuginfo-2.0.7-19.el7_1.2.x86_64.rpm kexec-tools-eppic-2.0.7-19.el7_1.2.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-2015-0267 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 2015 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFVUmo5XlSAg2UNWIIRAtOpAJ9+F2apFeql3XonJOByyYvGUTby4wCaApKH lV/tuvpS2USiYqoLVHozykU= =462W -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce