-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2014:0801-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0801.html Issue date: 2014-06-26 CVE Names: CVE-2014-1737 CVE-2014-1738 ===================================================================== 1. Summary: Updated kernel packages that fix two security issues are now available for Red Hat Enterprise Linux 5.6 Long Life. The Red Hat Security Response Team has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux LL (v. 5.6 server) - i386, ia64, noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's floppy driver handled user space provided data in certain error code paths while processing FDRAWCMD IOCTL commands. A local user with write access to /dev/fdX could use this flaw to free (using the kfree() function) arbitrary kernel memory. (CVE-2014-1737, Important) * It was found that the Linux kernel's floppy driver leaked internal kernel memory addresses to user space during the processing of the FDRAWCMD IOCTL command. A local user with write access to /dev/fdX could use this flaw to obtain information about the kernel heap arrangement. (CVE-2014-1738, Low) Note: A local user with write access to /dev/fdX could use these two flaws (CVE-2014-1737 in combination with CVE-2014-1738) to escalate their privileges on the system. Red Hat would like to thank Matthew Daley for reporting these issues. All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. 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/knowledge/articles/11258 To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system. 5. Bugs fixed (https://bugzilla.redhat.com/): 1094299 - CVE-2014-1737 CVE-2014-1738 kernel: block: floppy: privilege escalation via FDRAWCMD floppy ioctl command 6. Package List: Red Hat Enterprise Linux LL (v. 5.6 server): Source: kernel-2.6.18-238.53.1.el5.src.rpm i386: kernel-2.6.18-238.53.1.el5.i686.rpm kernel-PAE-2.6.18-238.53.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-238.53.1.el5.i686.rpm kernel-PAE-devel-2.6.18-238.53.1.el5.i686.rpm kernel-debug-2.6.18-238.53.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-238.53.1.el5.i686.rpm kernel-debug-devel-2.6.18-238.53.1.el5.i686.rpm kernel-debuginfo-2.6.18-238.53.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-238.53.1.el5.i686.rpm kernel-devel-2.6.18-238.53.1.el5.i686.rpm kernel-headers-2.6.18-238.53.1.el5.i386.rpm kernel-xen-2.6.18-238.53.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-238.53.1.el5.i686.rpm kernel-xen-devel-2.6.18-238.53.1.el5.i686.rpm ia64: kernel-2.6.18-238.53.1.el5.ia64.rpm kernel-debug-2.6.18-238.53.1.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-238.53.1.el5.ia64.rpm kernel-debug-devel-2.6.18-238.53.1.el5.ia64.rpm kernel-debuginfo-2.6.18-238.53.1.el5.ia64.rpm kernel-debuginfo-common-2.6.18-238.53.1.el5.ia64.rpm kernel-devel-2.6.18-238.53.1.el5.ia64.rpm kernel-headers-2.6.18-238.53.1.el5.ia64.rpm kernel-xen-2.6.18-238.53.1.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-238.53.1.el5.ia64.rpm kernel-xen-devel-2.6.18-238.53.1.el5.ia64.rpm noarch: kernel-doc-2.6.18-238.53.1.el5.noarch.rpm x86_64: kernel-2.6.18-238.53.1.el5.x86_64.rpm kernel-debug-2.6.18-238.53.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-238.53.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-238.53.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-238.53.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-238.53.1.el5.x86_64.rpm kernel-devel-2.6.18-238.53.1.el5.x86_64.rpm kernel-headers-2.6.18-238.53.1.el5.x86_64.rpm kernel-xen-2.6.18-238.53.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-238.53.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-238.53.1.el5.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-2014-1737.html https://www.redhat.com/security/data/cve/CVE-2014-1738.html https://access.redhat.com/security/updates/classification/#important 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 v1.4.4 (GNU/Linux) iD8DBQFTrFe7XlSAg2UNWIIRAjJOAKDE4pUIDub/0jEKGO6xlC3ay6iFuwCfcbmI gHJWRJzp4Bdttc+LVSrWJyw= =IQKm -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce