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CVE-2013-6367

Status Candidate

Overview

The apic_get_tmcct function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via crafted modifications of the TMICT value.

Related Files

Debian Security Advisory 2906-1
Posted Apr 25, 2014
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2906-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, information leak or privilege escalation.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2013-0343, CVE-2013-2147, CVE-2013-2889, CVE-2013-2893, CVE-2013-4162, CVE-2013-4299, CVE-2013-4345, CVE-2013-4512, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6381, CVE-2013-6382, CVE-2013-6383, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7339, CVE-2014-0101, CVE-2014-1444, CVE-2014-1445, CVE-2014-1446, CVE-2014-1874, CVE-2014-2039, CVE-2014-2523, CVE-2103-2929
SHA-256 | 336839d986f877d0c9633d42e6961fa76ae807751676c40199ee1f7de18091c3
Red Hat Security Advisory 2014-0284-01
Posted Mar 11, 2014
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2014-0284-01 - 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 IPv6 implementation handled certain UDP packets when the UDP Fragmentation Offload feature was enabled. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system. A flaw was found in the way the Linux kernel's TCP/IP protocol suite implementation handled sending of certain UDP packets over sockets that used the UDP_CORK option when the UDP Fragmentation Offload feature was enabled on the output device. A local, unprivileged user could use this flaw to cause a denial of service or, potentially, escalate their privileges on the system.

tags | advisory, remote, denial of service, kernel, local, udp, tcp, protocol
systems | linux, redhat
advisories | CVE-2013-2851, CVE-2013-4387, CVE-2013-4470, CVE-2013-4591, CVE-2013-6367, CVE-2013-6368, CVE-2013-6381
SHA-256 | 8cfc7fc325fe40888918ba9e8f2de222f45256f4ab9832b9a6acc34dd00ab357
Ubuntu Security Notice USN-2139-1
Posted Mar 7, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2139-1 - Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Andrew Honig reported a flaw in the apic_get_tmcct function of the Kernel Virtual Machine (KVM) subsystem if the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service or host OS system crash. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, spoof
systems | linux, ubuntu
advisories | CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2014-1438, CVE-2014-1446, CVE-2014-1874, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267
SHA-256 | 20e4ad37ba3579154d082431d1ffc412dd404e4eb68894bd89f0293944cf258e
Ubuntu Security Notice USN-2138-1
Posted Mar 7, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2138-1 - Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Andrew Honig reported a flaw in the apic_get_tmcct function of the Kernel Virtual Machine (KVM) subsystem if the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service or host OS system crash. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, spoof
systems | linux, ubuntu
advisories | CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2014-1438, CVE-2014-1446, CVE-2014-1874, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267
SHA-256 | 91680cbbf5fdef2f8e07e5eabb29b6df8d014cbc0dc9ff61a243b2814aed15ba
Ubuntu Security Notice USN-2135-1
Posted Mar 7, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2135-1 - Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Andrew Honig reported a flaw in the apic_get_tmcct function of the Kernel Virtual Machine (KVM) subsystem if the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service or host OS system crash. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, spoof
systems | linux, ubuntu
advisories | CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2014-1438, CVE-2014-1446, CVE-2014-1874, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267
SHA-256 | 15f68ffbf56d0fd2be399e88e649a6de0dea4b63d397095fc8962cd729c5dca8
Ubuntu Security Notice USN-2136-1
Posted Mar 7, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2136-1 - Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Andrew Honig reported a flaw in the apic_get_tmcct function of the Kernel Virtual Machine (KVM) subsystem if the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service or host OS system crash. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, spoof
systems | linux, ubuntu
advisories | CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6376, CVE-2013-6380, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2014-1438, CVE-2014-1446, CVE-2014-1874, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6376, CVE-2013-6380, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265
SHA-256 | 537583a7f5fadb8ab459bd50b9fe322fbd3646055990d05a9976624652e123ec
Ubuntu Security Notice USN-2141-1
Posted Mar 7, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2141-1 - Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Andrew Honig reported a flaw in the apic_get_tmcct function of the Kernel Virtual Machine (KVM) subsystem if the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service or host OS system crash. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, spoof
systems | linux, ubuntu
advisories | CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2014-1438, CVE-2014-1446, CVE-2014-1874, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267
SHA-256 | 584bfbf9f9d2b522c1853ffa0d762221a3db105ad3b3f2a5b5ba98563a86f4bd
Ubuntu Security Notice USN-2129-1
Posted Mar 6, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2129-1 - An information leak was discovered in the Linux kernel when inotify is used to monitor the /dev/ptmx device. A local user could exploit this flaw to discover keystroke timing and potentially discover sensitive information like password length. Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-0160, CVE-2013-2929, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7027, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2014-1444, CVE-2014-1445, CVE-2014-1446, CVE-2014-1874, CVE-2013-0160, CVE-2013-2929, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7027, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269
SHA-256 | 26def1da51e3753541184bde4fad779091149899914c8225f8d51c895c375721
Ubuntu Security Notice USN-2128-1
Posted Mar 6, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2128-1 - An information leak was discovered in the Linux kernel when inotify is used to monitor the /dev/ptmx device. A local user could exploit this flaw to discover keystroke timing and potentially discover sensitive information like password length. Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-0160, CVE-2013-2929, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7027, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2014-1444, CVE-2014-1445, CVE-2014-1446, CVE-2014-1874, CVE-2013-0160, CVE-2013-2929, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7027, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269
SHA-256 | f93775724c74d2ee6adb72b9dce313cb6dc890d079d7d6ebdb872b101263d582
Ubuntu Security Notice USN-2113-1
Posted Feb 19, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2113-1 - Saran Neti reported a flaw in the ipv6 UDP Fragmentation Offload (UFI) in the Linux kernel. A remote attacker could exploit this flaw to cause a denial of service (panic). Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, udp, spoof
systems | linux, ubuntu
advisories | CVE-2013-4563, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6376, CVE-2013-6382, CVE-2013-6432, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2014-1438, CVE-2014-1446, CVE-2013-4563, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6376, CVE-2013-6382, CVE-2013-6432
SHA-256 | b4b98d6e24984870cfe76d2ee9c3764dde0cfada14d2de91292681590d95ce1e
Ubuntu Security Notice USN-2113-1
Posted Feb 19, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2113-1 - Saran Neti reported a flaw in the ipv6 UDP Fragmentation Offload (UFI) in the Linux kernel. A remote attacker could exploit this flaw to cause a denial of service (panic). Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, udp, spoof
systems | linux, ubuntu
advisories | CVE-2013-4563, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6376, CVE-2013-6382, CVE-2013-6432, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2014-1438, CVE-2014-1446, CVE-2013-4563, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6376, CVE-2013-6382, CVE-2013-6432
SHA-256 | b4b98d6e24984870cfe76d2ee9c3764dde0cfada14d2de91292681590d95ce1e
Ubuntu Security Notice USN-2117-1
Posted Feb 19, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2117-1 - Saran Neti reported a flaw in the ipv6 UDP Fragmentation Offload (UFI) in the Linux kernel. A remote attacker could exploit this flaw to cause a denial of service (panic). Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, udp, spoof
systems | linux, ubuntu
advisories | CVE-2013-4563, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6376, CVE-2013-6382, CVE-2013-6432, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2014-1438, CVE-2014-1446, CVE-2013-4563, CVE-2013-4579, CVE-2013-4587, CVE-2013-6367, CVE-2013-6368, CVE-2013-6376, CVE-2013-6382, CVE-2013-6432
SHA-256 | 988c359c9d2af2f86d73d91b71720fa19adc7f621c4b9b65867f1729c58bb05c
Ubuntu Security Notice USN-2110-1
Posted Feb 19, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2110-1 - Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2929, CVE-2013-4345, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2013-2929, CVE-2013-4345, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268
SHA-256 | f5d5f017a1f978753da8eaddad5530e205560b414e1034f60631ed87c66c73ff
Ubuntu Security Notice USN-2109-1
Posted Feb 19, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2109-1 - Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. Stephan Mueller reported an error in the Linux kernel's ansi cprng random number generator. This flaw makes it easier for a local attacker to break cryptographic protections. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-2929, CVE-2013-4345, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7281, CVE-2013-2929, CVE-2013-4345, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268
SHA-256 | f9a9229f276d5732e342ff0e1d0acf9d5b773dd92e400f9e84538701ee334b3a
Red Hat Security Advisory 2014-0163-01
Posted Feb 13, 2014
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2014-0163-01 - KVM is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel. A divide-by-zero flaw was found in the apic_get_tmcct() function in KVM's Local Advanced Programmable Interrupt Controller implementation. A privileged guest user could use this flaw to crash the host. A memory corruption flaw was discovered in the way KVM handled virtual APIC accesses that crossed a page boundary. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2013-6367, CVE-2013-6368
SHA-256 | 44863daf8622cff24ab177852ccb4bfb7f75bb6a69579ca83ba17b43ea16e8d0
Mandriva Linux Security Advisory 2014-001
Posted Jan 13, 2014
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2014-001 - Multiple vulnerabilities has been found and corrected in the Linux kernel. The KVM subsystem in the Linux kernel through 3.12.5 allows local users to gain privileges or cause a denial of service via a VAPIC synchronization operation involving a page-end address. The apic_get_tmcct function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service via crafted modifications of the TMICT value. Multiple buffer underflows in the XFS implementation in the Linux kernel through 3.12.1 allow local users to cause a denial of service or possibly have unspecified other impact by leveraging the CAP_SYS_ADMIN capability for a XFS_IOC_ATTRLIST_BY_HANDLE or XFS_IOC_ATTRLIST_BY_HANDLE_32 ioctl call with a crafted length value, related to the xfs_attrlist_by_handle function in fs/xfs/xfs_ioctl.c and the xfs_compat_attrlist_by_handle function in fs/xfs/xfs_ioctl32.c. Various other issues have also been addressed.

tags | advisory, denial of service, x86, kernel, local, vulnerability
systems | linux, mandriva
advisories | CVE-2013-6368, CVE-2013-6367, CVE-2013-6382, CVE-2013-4587, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2013-7263, CVE-2013-7264, CVE-2013-7265, CVE-2013-7281
SHA-256 | 6b69bde0893ff767d6c4a031c3974e5299f98484da5c93e76dddaff606637041
Red Hat Security Advisory 2013-1801-01
Posted Dec 14, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1801-01 - 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 TCP/IP protocol suite implementation handled sending of certain UDP packets over sockets that used the UDP_CORK option when the UDP Fragmentation Offload feature was enabled on the output device. A local, unprivileged user could use this flaw to cause a denial of service or, potentially, escalate their privileges on the system. A divide-by-zero flaw was found in the apic_get_tmcct() function in KVM's Local Advanced Programmable Interrupt Controller implementation. A privileged guest user could use this flaw to crash the host.

tags | advisory, denial of service, kernel, local, udp, tcp, protocol
systems | linux, redhat
advisories | CVE-2013-2141, CVE-2013-4470, CVE-2013-6367, CVE-2013-6368
SHA-256 | d0f1b4d682fc9cc34de66855fdecdbfa199350b9da866e2821619994c2c3dc37
Red Hat Security Advisory 2013-1802-01
Posted Dec 14, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1802-01 - The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine hypervisor. It includes everything necessary to run and manage virtual machines: a subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. Upgrade Note: If you upgrade the Red Hat Enterprise Virtualization Hypervisor through the 3.2 Manager administration portal, the Host may appear with the status of "Install Failed". If this happens, place the host into maintenance mode, then activate it again to get the host back to an "Up" state.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2013-6367
SHA-256 | 488924ed85a07410046fc5c802fdf12cb089449d350cd905dea1f623e371af24
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