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Scientific Linux alert SLSA-2014:0285-1 (kernel)

From:  Pat Riehecky <riehecky@fnal.gov>
To:  <scientific-linux-errata@listserv.fnal.gov>
Subject:  Security ERRATA Important: kernel on SL5.x i386/x86_64
Date:  Thu, 13 Mar 2014 14:27:37 +0000
Message-ID:  <20140313142737.8981.61731@slpackages.fnal.gov>

Synopsis: Important: kernel security, bug fix, and enhancement update Advisory ID: SLSA-2014:0285-1 Issue Date: 2014-03-12 CVE Numbers: CVE-2013-4483 CVE-2013-2929 CVE-2013-4554 CVE-2013-6383 CVE-2013-6381 CVE-2013-6885 CVE-2013-7263 CVE-2013-7265 -- * A buffer overflow flaw was found in the way the qeth_snmp_command() function in the Linux kernel's QETH network device driver implementation handled SNMP IOCTL requests with an out-of-bounds length. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2013-6381, Important) * A flaw was found in the way the ipc_rcu_putref() function in the Linux kernel's IPC implementation handled reference counter decrementing. A local, unprivileged user could use this flaw to trigger an Out of Memory (OOM) condition and, potentially, crash the system. (CVE-2013-4483, Moderate) * It was found that the Xen hypervisor implementation did not correctly check privileges of hypercall attempts made by HVM guests, allowing hypercalls to be invoked from protection rings 1 and 2 in addition to ring 0. A local attacker in an HVM guest able to execute code on privilege levels 1 and 2 could potentially use this flaw to further escalate their privileges in that guest. Note: Xen HVM guests running unmodified versions of Scientific Linux and Microsoft Windows are not affected by this issue because they are known to only use protection rings 0 (kernel) and 3 (userspace). (CVE-2013-4554, Moderate) * A flaw was found in the way the Linux kernel's Adaptec RAID controller (aacraid) checked permissions of compat IOCTLs. A local attacker could use this flaw to bypass intended security restrictions. (CVE-2013-6383, Moderate) A privileged user in a guest running under the Xen hypervisor could use this flaw to cause a denial of service on the host system. This update adds a workaround to the Xen hypervisor implementation, which mitigates the AMD CPU issue. Note: this issue only affects AMD Family 16h Models 00h-0Fh Processors. Non-AMD CPUs are not vulnerable. (CVE-2013-6885, Moderate) * It was found that certain protocol handlers in the Linux kernel's networking implementation could set the addr_len value without initializing the associated data structure. A local, unprivileged user could use this flaw to leak kernel stack memory to user space using the recvmsg, recvfrom, and recvmmsg system calls. (CVE-2013-7263, Low) * A flaw was found in the way the get_dumpable() function return value was interpreted in the ptrace subsystem of the Linux kernel. When 'fs.suid_dumpable' was set to 2, a local, unprivileged local user could use this flaw to bypass intended ptrace restrictions and obtain potentially sensitive information. (CVE-2013-2929, Low) The system must be rebooted for this update to take effect. -- SL5 x86_64 kernel-2.6.18-371.6.1.el5.x86_64.rpm kernel-debug-2.6.18-371.6.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-371.6.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-371.6.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-371.6.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-371.6.1.el5.x86_64.rpm kernel-devel-2.6.18-371.6.1.el5.x86_64.rpm kernel-headers-2.6.18-371.6.1.el5.x86_64.rpm kernel-xen-2.6.18-371.6.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-371.6.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-371.6.1.el5.x86_64.rpm i386 kernel-2.6.18-371.6.1.el5.i686.rpm kernel-PAE-2.6.18-371.6.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-371.6.1.el5.i686.rpm kernel-PAE-devel-2.6.18-371.6.1.el5.i686.rpm kernel-debug-2.6.18-371.6.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-371.6.1.el5.i686.rpm kernel-debug-devel-2.6.18-371.6.1.el5.i686.rpm kernel-debuginfo-2.6.18-371.6.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-371.6.1.el5.i686.rpm kernel-devel-2.6.18-371.6.1.el5.i686.rpm kernel-headers-2.6.18-371.6.1.el5.i386.rpm kernel-xen-2.6.18-371.6.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-371.6.1.el5.i686.rpm kernel-xen-devel-2.6.18-371.6.1.el5.i686.rpm noarch kernel-doc-2.6.18-371.6.1.el5.noarch.rpm - Scientific Linux Development Team


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