Red Hat Security Advisory 2015-1564-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. It was found that the Linux kernel's ping socket implementation did not properly handle socket unhashing during spurious disconnects, which could lead to a use-after-free flaw. On x86-64 architecture systems, a local user able to create ping sockets could use this flaw to crash the system. On non-x86-64 architecture systems, a local user able to create ping sockets could use this flaw to escalate their privileges on the system.
40ede30d6e6cf20dbab081504c2f5e114b04769bab17677d0d0c97032009daf2Red Hat Security Advisory 2015-1565-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel level, bypassing intended restrictions in place.
179873d3f9002fb4db51e8b9c22ef1d4b5cb4592c64af9a8c4b6b95906ef2a19Red Hat Security Advisory 2015-1534-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel level, bypassing intended restrictions in place.
048d2d5cc4c394bfaaa95fb119f66f3f8d4896e9a5488b77527d6292a1ab8197Ubuntu Security Notice 2611-1 - Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network (LAN) could potential exploit this flaw to cause a denial of service (system crash of targeted system).
b4c3e998a7d49a92e110bfc778dcffdf6db3890e165a13a0f8516fe439bbd4d6Ubuntu Security Notice 2612-1 - A race condition between chown() and execve() was discovered in the Linux kernel. A local attacker could exploit this race by using chown on a setuid-user-binary to gain administrative privileges. Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network (LAN) could potential exploit this flaw to cause a denial of service (system crash of targeted system). Various other issues were also addressed.
34f987f7f6f67822ddd0219c9c83f04635ee710cc9f38ec4ba1174eb68d51de2Ubuntu Security Notice 2613-1 - Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network (LAN) could potential exploit this flaw to cause a denial of service (system crash of targeted system). Jan Beulich discovered the Xen virtual machine subsystem of the Linux kernel did not properly restrict access to PCI command registers. A local guest user could exploit this flaw to cause a denial of service (host crash). Various other issues were also addressed.
b64bb60c18c519b0ed27d58ee2e71d6a5fbd6269a6aab22e4be17fc12e4cf9e1Ubuntu Security Notice 2614-1 - Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network (LAN) could potential exploit this flaw to cause a denial of service (system crash of targeted system). Jan Beulich discovered the Xen virtual machine subsystem of the Linux kernel did not properly restrict access to PCI command registers. A local guest user could exploit this flaw to cause a denial of service (host crash). Various other issues were also addressed.
e0987162501d8a55fc1a3e8a6bf474732d7e1427471124e0dc77fe43dbc3b88aDebian Linux Security Advisory 3237-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
aa8f1362fe2b1e520df3774e9b5a3562a1ce08175dfc089a7a41b13a71abdb2e
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