Red Hat Security Advisory 2017-1842-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: An use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system. A flaw was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL. A local user could use this flaw to crash the system or, potentially, escalate their privileges.
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Red Hat Security Advisory 2017-2077-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: An use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system. A flaw was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL. A local user could use this flaw to crash the system or, potentially, escalate their privileges.
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Ubuntu Security Notice 3190-2 - Mikulas Patocka discovered that the asynchronous multibuffer cryptographic daemon in the Linux kernel did not properly handle being invoked with incompatible algorithms. A local attacker could use this to cause a denial of service. It was discovered that a use-after-free existed in the KVM susbsystem of the Linux kernel when creating devices. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
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Ubuntu Security Notice 3189-1 - Mikulas Patocka discovered that the asynchronous multibuffer cryptographic daemon in the Linux kernel did not properly handle being invoked with incompatible algorithms. A local attacker could use this to cause a denial of service. Qidan He discovered that the ICMP implementation in the Linux kernel did not properly check the size of an ICMP header. A local attacker with CAP_NET_ADMIN could use this to expose sensitive information. Various other issues were also addressed.
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Ubuntu Security Notice 3189-2 - USN-3189-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Mikulas Patocka discovered that the asynchronous multibuffer cryptographic daemon in the Linux kernel did not properly handle being invoked with incompatible algorithms. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
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Ubuntu Security Notice 3190-1 - Mikulas Patocka discovered that the asynchronous multibuffer cryptographic daemon in the Linux kernel did not properly handle being invoked with incompatible algorithms. A local attacker could use this to cause a denial of service. It was discovered that a use-after-free existed in the KVM susbsystem of the Linux kernel when creating devices. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
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